991289880

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5701}}^1$

素因数の和:5751

約数の個数: 256

約数和(自身を含む): 3941222400

約数和(自身を除く): 2949932520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 54, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 108, 115, 120, 126, 135, 138, 140, 161, 168, 180, 184, 189, 207, 210, 216, 230, 252, 270, 276, 280, 315, 322, 345, 360, 378, 414, 420, 460, 483, 504, 540, 552, 621, 630, 644, 690, 756, 805, 828, 840, 920, 945, 966, 1035, 1080, 1242, 1260, 1288, 1380, 1449, 1512, 1610, 1656, 1890, 1932, 2070, 2415, 2484, 2520, 2760, 2898, 3105, 3220, 3780, 3864, 4140, 4347, 4830, 4968, 5701, 5796, 6210, 6440, 7245, 7560, 8280, 8694, 9660, 11402, 11592, 12420, 14490, 17103, 17388, 19320, 21735, 22804, 24840, 28505, 28980, 34206, 34776, 39907, 43470, 45608, 51309, 57010, 57960, 68412, 79814, 85515, 86940, 102618, 114020, 119721, 131123, 136824, 153927, 159628, 171030, 173880, 199535, 205236, 228040, 239442, 256545, 262246, 307854, 319256, 342060, 359163, 393369, 399070, 410472, 478884, 513090, 524492, 598605, 615708, 655615, 684120, 718326, 769635, 786738, 798140, 917861, 957768, 1026180, 1048984, 1077489, 1180107, 1197210, 1231416, 1311230, 1436652, 1539270, 1573476, 1596280, 1795815, 1835722, 1966845, 2052360, 2154978, 2360214, 2394420, 2622460, 2753583, 2873304, 3078540, 3146952, 3540321, 3591630, 3671444, 3933690, 4309956, 4589305, 4720428, 4788840, 5244920, 5387445, 5507166, 5900535, 6157080, 7080642, 7183260, 7342888, 7867380, 8260749, 8619912, 9178610, 9440856, 10774890, 11014332, 11801070, 13767915, 14161284, 14366520, 15734760, 16521498, 17701605, 18357220, 21549780, 22028664, 23602140, 24782247, 27535830, 28322568, 33042996, 35403210, 36714440, 41303745, 43099560, 47204280, 49564494, 55071660, 66085992, 70806420, 82607490, 99128988, 110143320, 123911235, 141612840, 165214980, 198257976, 247822470, 330429960, 495644940, 991289880]

約数ペア:

[(1, 991289880), (2, 495644940), (3, 330429960), (4, 247822470), (5, 198257976), (6, 165214980), (7, 141612840), (8, 123911235), (9, 110143320), (10, 99128988), (12, 82607490), (14, 70806420), (15, 66085992), (18, 55071660), (20, 49564494), (21, 47204280), (23, 43099560), (24, 41303745), (27, 36714440), (28, 35403210), (30, 33042996), (35, 28322568), (36, 27535830), (40, 24782247), (42, 23602140), (45, 22028664), (46, 21549780), (54, 18357220), (56, 17701605), (60, 16521498), (63, 15734760), (69, 14366520), (70, 14161284), (72, 13767915), (84, 11801070), (90, 11014332), (92, 10774890), (105, 9440856), (108, 9178610), (115, 8619912), (120, 8260749), (126, 7867380), (135, 7342888), (138, 7183260), (140, 7080642), (161, 6157080), (168, 5900535), (180, 5507166), (184, 5387445), (189, 5244920), (207, 4788840), (210, 4720428), (216, 4589305), (230, 4309956), (252, 3933690), (270, 3671444), (276, 3591630), (280, 3540321), (315, 3146952), (322, 3078540), (345, 2873304), (360, 2753583), (378, 2622460), (414, 2394420), (420, 2360214), (460, 2154978), (483, 2052360), (504, 1966845), (540, 1835722), (552, 1795815), (621, 1596280), (630, 1573476), (644, 1539270), (690, 1436652), (756, 1311230), (805, 1231416), (828, 1197210), (840, 1180107), (920, 1077489), (945, 1048984), (966, 1026180), (1035, 957768), (1080, 917861), (1242, 798140), (1260, 786738), (1288, 769635), (1380, 718326), (1449, 684120), (1512, 655615), (1610, 615708), (1656, 598605), (1890, 524492), (1932, 513090), (2070, 478884), (2415, 410472), (2484, 399070), (2520, 393369), (2760, 359163), (2898, 342060), (3105, 319256), (3220, 307854), (3780, 262246), (3864, 256545), (4140, 239442), (4347, 228040), (4830, 205236), (4968, 199535), (5701, 173880), (5796, 171030), (6210, 159628), (6440, 153927), (7245, 136824), (7560, 131123), (8280, 119721), (8694, 114020), (9660, 102618), (11402, 86940), (11592, 85515), (12420, 79814), (14490, 68412), (17103, 57960), (17388, 57010), (19320, 51309), (21735, 45608), (22804, 43470), (24840, 39907), (28505, 34776), (28980, 34206)]