1989998640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{17167}}^1$

素因数の和:17216

約数の個数: 240

約数和(自身を含む): 7970347008

約数和(自身を除く): 5980348368

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 48, 56, 60, 63, 69, 70, 72, 80, 84, 90, 92, 105, 112, 115, 120, 126, 138, 140, 144, 161, 168, 180, 184, 207, 210, 230, 240, 252, 276, 280, 315, 322, 336, 345, 360, 368, 414, 420, 460, 483, 504, 552, 560, 630, 644, 690, 720, 805, 828, 840, 920, 966, 1008, 1035, 1104, 1260, 1288, 1380, 1449, 1610, 1656, 1680, 1840, 1932, 2070, 2415, 2520, 2576, 2760, 2898, 3220, 3312, 3864, 4140, 4830, 5040, 5520, 5796, 6440, 7245, 7728, 8280, 9660, 11592, 12880, 14490, 16560, 17167, 19320, 23184, 28980, 34334, 38640, 51501, 57960, 68668, 85835, 103002, 115920, 120169, 137336, 154503, 171670, 206004, 240338, 257505, 274672, 309006, 343340, 360507, 394841, 412008, 480676, 515010, 600845, 618012, 686680, 721014, 772515, 789682, 824016, 961352, 1030020, 1081521, 1184523, 1201690, 1236024, 1373360, 1442028, 1545030, 1579364, 1802535, 1922704, 1974205, 2060040, 2163042, 2369046, 2403380, 2472048, 2763887, 2884056, 3090060, 3158728, 3553569, 3605070, 3948410, 4120080, 4326084, 4738092, 4806760, 5407605, 5527774, 5768112, 5922615, 6180120, 6317456, 7107138, 7210140, 7896820, 8291661, 8652168, 9476184, 9613520, 10815210, 11055548, 11845230, 12360240, 13819435, 14214276, 14420280, 15793640, 16583322, 17304336, 17767845, 18952368, 21630420, 22111096, 23690460, 24874983, 27638870, 28428552, 28840560, 31587280, 33166644, 35535690, 41458305, 43260840, 44222192, 47380920, 49749966, 55277740, 56857104, 66333288, 71071380, 82916610, 86521680, 94761840, 99499932, 110555480, 124374915, 132666576, 142142760, 165833220, 198999864, 221110960, 248749830, 284285520, 331666440, 397999728, 497499660, 663332880, 994999320, 1989998640]

約数ペア:

[(1, 1989998640), (2, 994999320), (3, 663332880), (4, 497499660), (5, 397999728), (6, 331666440), (7, 284285520), (8, 248749830), (9, 221110960), (10, 198999864), (12, 165833220), (14, 142142760), (15, 132666576), (16, 124374915), (18, 110555480), (20, 99499932), (21, 94761840), (23, 86521680), (24, 82916610), (28, 71071380), (30, 66333288), (35, 56857104), (36, 55277740), (40, 49749966), (42, 47380920), (45, 44222192), (46, 43260840), (48, 41458305), (56, 35535690), (60, 33166644), (63, 31587280), (69, 28840560), (70, 28428552), (72, 27638870), (80, 24874983), (84, 23690460), (90, 22111096), (92, 21630420), (105, 18952368), (112, 17767845), (115, 17304336), (120, 16583322), (126, 15793640), (138, 14420280), (140, 14214276), (144, 13819435), (161, 12360240), (168, 11845230), (180, 11055548), (184, 10815210), (207, 9613520), (210, 9476184), (230, 8652168), (240, 8291661), (252, 7896820), (276, 7210140), (280, 7107138), (315, 6317456), (322, 6180120), (336, 5922615), (345, 5768112), (360, 5527774), (368, 5407605), (414, 4806760), (420, 4738092), (460, 4326084), (483, 4120080), (504, 3948410), (552, 3605070), (560, 3553569), (630, 3158728), (644, 3090060), (690, 2884056), (720, 2763887), (805, 2472048), (828, 2403380), (840, 2369046), (920, 2163042), (966, 2060040), (1008, 1974205), (1035, 1922704), (1104, 1802535), (1260, 1579364), (1288, 1545030), (1380, 1442028), (1449, 1373360), (1610, 1236024), (1656, 1201690), (1680, 1184523), (1840, 1081521), (1932, 1030020), (2070, 961352), (2415, 824016), (2520, 789682), (2576, 772515), (2760, 721014), (2898, 686680), (3220, 618012), (3312, 600845), (3864, 515010), (4140, 480676), (4830, 412008), (5040, 394841), (5520, 360507), (5796, 343340), (6440, 309006), (7245, 274672), (7728, 257505), (8280, 240338), (9660, 206004), (11592, 171670), (12880, 154503), (14490, 137336), (16560, 120169), (17167, 115920), (19320, 103002), (23184, 85835), (28980, 68668), (34334, 57960), (38640, 51501)]