287671860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{228311}}^1$

素因数の和:228333

約数の個数: 72

約数和(自身を含む): 997266816

約数和(自身を除く): 709594956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 228311, 456622, 684933, 913244, 1141555, 1369866, 1598177, 2054799, 2283110, 2739732, 3196354, 3424665, 4109598, 4566220, 4794531, 6392708, 6849330, 7990885, 8219196, 9589062, 10273995, 13698660, 14383593, 15981770, 19178124, 20547990, 23972655, 28767186, 31963540, 41095980, 47945310, 57534372, 71917965, 95890620, 143835930, 287671860]

約数ペア:

[(1, 287671860), (2, 143835930), (3, 95890620), (4, 71917965), (5, 57534372), (6, 47945310), (7, 41095980), (9, 31963540), (10, 28767186), (12, 23972655), (14, 20547990), (15, 19178124), (18, 15981770), (20, 14383593), (21, 13698660), (28, 10273995), (30, 9589062), (35, 8219196), (36, 7990885), (42, 6849330), (45, 6392708), (60, 4794531), (63, 4566220), (70, 4109598), (84, 3424665), (90, 3196354), (105, 2739732), (126, 2283110), (140, 2054799), (180, 1598177), (210, 1369866), (252, 1141555), (315, 913244), (420, 684933), (630, 456622), (1260, 228311)]