128486840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{60607}}^1$

素因数の和:60671

約数の個数: 32

約数和(自身を含む): 294554880

約数和(自身を除く): 166068040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 60607, 121214, 242428, 303035, 484856, 606070, 1212140, 2424280, 3212171, 6424342, 12848684, 16060855, 25697368, 32121710, 64243420, 128486840]

約数ペア:

[(1, 128486840), (2, 64243420), (4, 32121710), (5, 25697368), (8, 16060855), (10, 12848684), (20, 6424342), (40, 3212171), (53, 2424280), (106, 1212140), (212, 606070), (265, 484856), (424, 303035), (530, 242428), (1060, 121214), (2120, 60607)]