128531970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{204019}}^1$

素因数の和:204039

約数の個数: 48

約数和(自身を含む): 381925440

約数和(自身を除く): 253393470

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 204019, 408038, 612057, 1020095, 1224114, 1428133, 1836171, 2040190, 2856266, 3060285, 3672342, 4284399, 6120570, 7140665, 8568798, 9180855, 12853197, 14281330, 18361710, 21421995, 25706394, 42843990, 64265985, 128531970]

約数ペア:

[(1, 128531970), (2, 64265985), (3, 42843990), (5, 25706394), (6, 21421995), (7, 18361710), (9, 14281330), (10, 12853197), (14, 9180855), (15, 8568798), (18, 7140665), (21, 6120570), (30, 4284399), (35, 3672342), (42, 3060285), (45, 2856266), (63, 2040190), (70, 1836171), (90, 1428133), (105, 1224114), (126, 1020095), (210, 612057), (315, 408038), (630, 204019)]