20439480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2399}}^1$

素因数の和:2484

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 41768520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2399, 2840, 4260, 4798, 7197, 8520, 9596, 11995, 14394, 19192, 23990, 28788, 35985, 47980, 57576, 71970, 95960, 143940, 170329, 287880, 340658, 510987, 681316, 851645, 1021974, 1362632, 1703290, 2043948, 2554935, 3406580, 4087896, 5109870, 6813160, 10219740, 20439480]

約数ペア:

[(1, 20439480), (2, 10219740), (3, 6813160), (4, 5109870), (5, 4087896), (6, 3406580), (8, 2554935), (10, 2043948), (12, 1703290), (15, 1362632), (20, 1021974), (24, 851645), (30, 681316), (40, 510987), (60, 340658), (71, 287880), (120, 170329), (142, 143940), (213, 95960), (284, 71970), (355, 57576), (426, 47980), (568, 35985), (710, 28788), (852, 23990), (1065, 19192), (1420, 14394), (1704, 11995), (2130, 9596), (2399, 8520), (2840, 7197), (4260, 4798)]