7987960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{691}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 19119960

約数和(自身を除く): 11132000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 691, 1156, 1382, 1445, 2312, 2764, 2890, 3455, 5528, 5780, 6910, 11560, 11747, 13820, 23494, 27640, 46988, 58735, 93976, 117470, 199699, 234940, 399398, 469880, 798796, 998495, 1597592, 1996990, 3993980, 7987960]

約数ペア:

[(1, 7987960), (2, 3993980), (4, 1996990), (5, 1597592), (8, 998495), (10, 798796), (17, 469880), (20, 399398), (34, 234940), (40, 199699), (68, 117470), (85, 93976), (136, 58735), (170, 46988), (289, 27640), (340, 23494), (578, 13820), (680, 11747), (691, 11560), (1156, 6910), (1382, 5780), (1445, 5528), (2312, 3455), (2764, 2890)]