20212920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{617}}^1$

素因数の和:654

約数の個数: 192

約数和(自身を含む): 80982720

約数和(自身を除く): 60769800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 585, 617, 630, 728, 780, 819, 840, 910, 936, 1092, 1170, 1234, 1260, 1365, 1560, 1638, 1820, 1851, 2184, 2340, 2468, 2520, 2730, 3085, 3276, 3640, 3702, 4095, 4319, 4680, 4936, 5460, 5553, 6170, 6552, 7404, 8021, 8190, 8638, 9255, 10920, 11106, 12340, 12957, 14808, 16042, 16380, 17276, 18510, 21595, 22212, 24063, 24680, 25914, 27765, 32084, 32760, 34552, 37020, 38871, 40105, 43190, 44424, 48126, 51828, 55530, 56147, 64168, 64785, 72189, 74040, 77742, 80210, 86380, 96252, 103656, 111060, 112294, 120315, 129570, 144378, 155484, 160420, 168441, 172760, 192504, 194355, 222120, 224588, 240630, 259140, 280735, 288756, 310968, 320840, 336882, 360945, 388710, 449176, 481260, 505323, 518280, 561470, 577512, 673764, 721890, 777420, 842205, 962520, 1010646, 1122940, 1347528, 1443780, 1554840, 1684410, 2021292, 2245880, 2526615, 2887560, 3368820, 4042584, 5053230, 6737640, 10106460, 20212920]

約数ペア:

[(1, 20212920), (2, 10106460), (3, 6737640), (4, 5053230), (5, 4042584), (6, 3368820), (7, 2887560), (8, 2526615), (9, 2245880), (10, 2021292), (12, 1684410), (13, 1554840), (14, 1443780), (15, 1347528), (18, 1122940), (20, 1010646), (21, 962520), (24, 842205), (26, 777420), (28, 721890), (30, 673764), (35, 577512), (36, 561470), (39, 518280), (40, 505323), (42, 481260), (45, 449176), (52, 388710), (56, 360945), (60, 336882), (63, 320840), (65, 310968), (70, 288756), (72, 280735), (78, 259140), (84, 240630), (90, 224588), (91, 222120), (104, 194355), (105, 192504), (117, 172760), (120, 168441), (126, 160420), (130, 155484), (140, 144378), (156, 129570), (168, 120315), (180, 112294), (182, 111060), (195, 103656), (210, 96252), (234, 86380), (252, 80210), (260, 77742), (273, 74040), (280, 72189), (312, 64785), (315, 64168), (360, 56147), (364, 55530), (390, 51828), (420, 48126), (455, 44424), (468, 43190), (504, 40105), (520, 38871), (546, 37020), (585, 34552), (617, 32760), (630, 32084), (728, 27765), (780, 25914), (819, 24680), (840, 24063), (910, 22212), (936, 21595), (1092, 18510), (1170, 17276), (1234, 16380), (1260, 16042), (1365, 14808), (1560, 12957), (1638, 12340), (1820, 11106), (1851, 10920), (2184, 9255), (2340, 8638), (2468, 8190), (2520, 8021), (2730, 7404), (3085, 6552), (3276, 6170), (3640, 5553), (3702, 5460), (4095, 4936), (4319, 4680)]