7854390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{443}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 20571408

約数和(自身を除く): 12717018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 197, 394, 443, 591, 886, 985, 1182, 1329, 1773, 1970, 2215, 2658, 2955, 3546, 3987, 4430, 5910, 6645, 7974, 8865, 13290, 17730, 19935, 39870, 87271, 174542, 261813, 436355, 523626, 785439, 872710, 1309065, 1570878, 2618130, 3927195, 7854390]

約数ペア:

[(1, 7854390), (2, 3927195), (3, 2618130), (5, 1570878), (6, 1309065), (9, 872710), (10, 785439), (15, 523626), (18, 436355), (30, 261813), (45, 174542), (90, 87271), (197, 39870), (394, 19935), (443, 17730), (591, 13290), (886, 8865), (985, 7974), (1182, 6645), (1329, 5910), (1773, 4430), (1970, 3987), (2215, 3546), (2658, 2955)]