31802320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:604

約数の個数: 80

約数和(自身を含む): 81959040

約数和(自身を除く): 50156720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 509, 568, 710, 781, 880, 1018, 1136, 1420, 1562, 2036, 2545, 2840, 3124, 3905, 4072, 5090, 5599, 5680, 6248, 7810, 8144, 10180, 11198, 12496, 15620, 20360, 22396, 27995, 31240, 36139, 40720, 44792, 55990, 62480, 72278, 89584, 111980, 144556, 180695, 223960, 289112, 361390, 397529, 447920, 578224, 722780, 795058, 1445560, 1590116, 1987645, 2891120, 3180232, 3975290, 6360464, 7950580, 15901160, 31802320]

約数ペア:

[(1, 31802320), (2, 15901160), (4, 7950580), (5, 6360464), (8, 3975290), (10, 3180232), (11, 2891120), (16, 1987645), (20, 1590116), (22, 1445560), (40, 795058), (44, 722780), (55, 578224), (71, 447920), (80, 397529), (88, 361390), (110, 289112), (142, 223960), (176, 180695), (220, 144556), (284, 111980), (355, 89584), (440, 72278), (509, 62480), (568, 55990), (710, 44792), (781, 40720), (880, 36139), (1018, 31240), (1136, 27995), (1420, 22396), (1562, 20360), (2036, 15620), (2545, 12496), (2840, 11198), (3124, 10180), (3905, 8144), (4072, 7810), (5090, 6248), (5599, 5680)]