9705420

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{1997}}^1$

素因数の和:2021

約数の個数: 72

約数和(自身を含む): 30545424

約数和(自身を除く): 20840004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 1997, 2430, 3994, 4860, 5991, 7988, 9985, 11982, 17973, 19970, 23964, 29955, 35946, 39940, 53919, 59910, 71892, 89865, 107838, 119820, 161757, 179730, 215676, 269595, 323514, 359460, 485271, 539190, 647028, 808785, 970542, 1078380, 1617570, 1941084, 2426355, 3235140, 4852710, 9705420]

約数ペア:

[(1, 9705420), (2, 4852710), (3, 3235140), (4, 2426355), (5, 1941084), (6, 1617570), (9, 1078380), (10, 970542), (12, 808785), (15, 647028), (18, 539190), (20, 485271), (27, 359460), (30, 323514), (36, 269595), (45, 215676), (54, 179730), (60, 161757), (81, 119820), (90, 107838), (108, 89865), (135, 71892), (162, 59910), (180, 53919), (243, 39940), (270, 35946), (324, 29955), (405, 23964), (486, 19970), (540, 17973), (810, 11982), (972, 9985), (1215, 7988), (1620, 5991), (1997, 4860), (2430, 3994)]