321176560

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{59921}}^1$

素因数の和:60001

約数の個数: 40

約数和(自身を含む): 757893456

約数和(自身を除く): 436716896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 59921, 119842, 239684, 299605, 479368, 599210, 958736, 1198420, 2396840, 4014707, 4793680, 8029414, 16058828, 20073535, 32117656, 40147070, 64235312, 80294140, 160588280, 321176560]

約数ペア:

[(1, 321176560), (2, 160588280), (4, 80294140), (5, 64235312), (8, 40147070), (10, 32117656), (16, 20073535), (20, 16058828), (40, 8029414), (67, 4793680), (80, 4014707), (134, 2396840), (268, 1198420), (335, 958736), (536, 599210), (670, 479368), (1072, 299605), (1340, 239684), (2680, 119842), (5360, 59921)]