820904280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18439}}^1$

素因数の和:18513

約数の個数: 128

約数和(自身を含む): 2867788800

約数和(自身を除く): 2046884520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 53, 56, 60, 70, 84, 105, 106, 120, 140, 159, 168, 210, 212, 265, 280, 318, 371, 420, 424, 530, 636, 742, 795, 840, 1060, 1113, 1272, 1484, 1590, 1855, 2120, 2226, 2968, 3180, 3710, 4452, 5565, 6360, 7420, 8904, 11130, 14840, 18439, 22260, 36878, 44520, 55317, 73756, 92195, 110634, 129073, 147512, 184390, 221268, 258146, 276585, 368780, 387219, 442536, 516292, 553170, 645365, 737560, 774438, 977267, 1032584, 1106340, 1290730, 1548876, 1936095, 1954534, 2212680, 2581460, 2931801, 3097752, 3872190, 3909068, 4886335, 5162920, 5863602, 6840869, 7744380, 7818136, 9772670, 11727204, 13681738, 14659005, 15488760, 19545340, 20522607, 23454408, 27363476, 29318010, 34204345, 39090680, 41045214, 54726952, 58636020, 68408690, 82090428, 102613035, 117272040, 136817380, 164180856, 205226070, 273634760, 410452140, 820904280]

約数ペア:

[(1, 820904280), (2, 410452140), (3, 273634760), (4, 205226070), (5, 164180856), (6, 136817380), (7, 117272040), (8, 102613035), (10, 82090428), (12, 68408690), (14, 58636020), (15, 54726952), (20, 41045214), (21, 39090680), (24, 34204345), (28, 29318010), (30, 27363476), (35, 23454408), (40, 20522607), (42, 19545340), (53, 15488760), (56, 14659005), (60, 13681738), (70, 11727204), (84, 9772670), (105, 7818136), (106, 7744380), (120, 6840869), (140, 5863602), (159, 5162920), (168, 4886335), (210, 3909068), (212, 3872190), (265, 3097752), (280, 2931801), (318, 2581460), (371, 2212680), (420, 1954534), (424, 1936095), (530, 1548876), (636, 1290730), (742, 1106340), (795, 1032584), (840, 977267), (1060, 774438), (1113, 737560), (1272, 645365), (1484, 553170), (1590, 516292), (1855, 442536), (2120, 387219), (2226, 368780), (2968, 276585), (3180, 258146), (3710, 221268), (4452, 184390), (5565, 147512), (6360, 129073), (7420, 110634), (8904, 92195), (11130, 73756), (14840, 55317), (18439, 44520), (22260, 36878)]