904880560

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1\times {\mathrm{421}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 2145657312

約数和(自身を除く): 1240776752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 401, 421, 536, 670, 802, 842, 1072, 1340, 1604, 1684, 2005, 2105, 2680, 3208, 3368, 4010, 4210, 5360, 6416, 6736, 8020, 8420, 16040, 16840, 26867, 28207, 32080, 33680, 53734, 56414, 107468, 112828, 134335, 141035, 168821, 214936, 225656, 268670, 282070, 337642, 429872, 451312, 537340, 564140, 675284, 844105, 1074680, 1128280, 1350568, 1688210, 2149360, 2256560, 2701136, 3376420, 6752840, 11311007, 13505680, 22622014, 45244028, 56555035, 90488056, 113110070, 180976112, 226220140, 452440280, 904880560]

約数ペア:

[(1, 904880560), (2, 452440280), (4, 226220140), (5, 180976112), (8, 113110070), (10, 90488056), (16, 56555035), (20, 45244028), (40, 22622014), (67, 13505680), (80, 11311007), (134, 6752840), (268, 3376420), (335, 2701136), (401, 2256560), (421, 2149360), (536, 1688210), (670, 1350568), (802, 1128280), (842, 1074680), (1072, 844105), (1340, 675284), (1604, 564140), (1684, 537340), (2005, 451312), (2105, 429872), (2680, 337642), (3208, 282070), (3368, 268670), (4010, 225656), (4210, 214936), (5360, 168821), (6416, 141035), (6736, 134335), (8020, 112828), (8420, 107468), (16040, 56414), (16840, 53734), (26867, 33680), (28207, 32080)]