4247220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 12071808

約数和(自身を除く): 7824588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 997, 1065, 1420, 1994, 2130, 2991, 3988, 4260, 4985, 5982, 9970, 11964, 14955, 19940, 29910, 59820, 70787, 141574, 212361, 283148, 353935, 424722, 707870, 849444, 1061805, 1415740, 2123610, 4247220]

約数ペア:

[(1, 4247220), (2, 2123610), (3, 1415740), (4, 1061805), (5, 849444), (6, 707870), (10, 424722), (12, 353935), (15, 283148), (20, 212361), (30, 141574), (60, 70787), (71, 59820), (142, 29910), (213, 19940), (284, 14955), (355, 11964), (426, 9970), (710, 5982), (852, 4985), (997, 4260), (1065, 3988), (1420, 2991), (1994, 2130)]