168686920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{691}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 403574400

約数和(自身を除く): 234887480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 359, 680, 691, 718, 1382, 1436, 1795, 2764, 2872, 3455, 3590, 5528, 6103, 6910, 7180, 11747, 12206, 13820, 14360, 23494, 24412, 27640, 30515, 46988, 48824, 58735, 61030, 93976, 117470, 122060, 234940, 244120, 248069, 469880, 496138, 992276, 1240345, 1984552, 2480690, 4217173, 4961380, 8434346, 9922760, 16868692, 21085865, 33737384, 42171730, 84343460, 168686920]

約数ペア:

[(1, 168686920), (2, 84343460), (4, 42171730), (5, 33737384), (8, 21085865), (10, 16868692), (17, 9922760), (20, 8434346), (34, 4961380), (40, 4217173), (68, 2480690), (85, 1984552), (136, 1240345), (170, 992276), (340, 496138), (359, 469880), (680, 248069), (691, 244120), (718, 234940), (1382, 122060), (1436, 117470), (1795, 93976), (2764, 61030), (2872, 58735), (3455, 48824), (3590, 46988), (5528, 30515), (6103, 27640), (6910, 24412), (7180, 23494), (11747, 14360), (12206, 13820)]