39787280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 101285184

約数和(自身を除く): 61497904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 571, 670, 871, 1040, 1072, 1142, 1340, 1742, 2284, 2680, 2855, 3484, 4355, 4568, 5360, 5710, 6968, 7423, 8710, 9136, 11420, 13936, 14846, 17420, 22840, 29692, 34840, 37115, 38257, 45680, 59384, 69680, 74230, 76514, 118768, 148460, 153028, 191285, 296920, 306056, 382570, 497341, 593840, 612112, 765140, 994682, 1530280, 1989364, 2486705, 3060560, 3978728, 4973410, 7957456, 9946820, 19893640, 39787280]

約数ペア:

[(1, 39787280), (2, 19893640), (4, 9946820), (5, 7957456), (8, 4973410), (10, 3978728), (13, 3060560), (16, 2486705), (20, 1989364), (26, 1530280), (40, 994682), (52, 765140), (65, 612112), (67, 593840), (80, 497341), (104, 382570), (130, 306056), (134, 296920), (208, 191285), (260, 153028), (268, 148460), (335, 118768), (520, 76514), (536, 74230), (571, 69680), (670, 59384), (871, 45680), (1040, 38257), (1072, 37115), (1142, 34840), (1340, 29692), (1742, 22840), (2284, 17420), (2680, 14846), (2855, 13936), (3484, 11420), (4355, 9136), (4568, 8710), (5360, 7423), (5710, 6968)]