30581980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 144

約数和(自身を含む): 82315296

約数和(自身を除く): 51733316

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 37, 44, 52, 55, 65, 68, 74, 85, 110, 130, 143, 148, 170, 185, 187, 220, 221, 260, 286, 289, 340, 370, 374, 407, 442, 481, 572, 578, 629, 715, 740, 748, 814, 884, 935, 962, 1105, 1156, 1258, 1430, 1445, 1628, 1870, 1924, 2035, 2210, 2405, 2431, 2516, 2860, 2890, 3145, 3179, 3740, 3757, 4070, 4420, 4810, 4862, 5291, 5780, 6290, 6358, 6919, 7514, 8140, 8177, 9620, 9724, 10582, 10693, 12155, 12580, 12716, 13838, 15028, 15895, 16354, 18785, 21164, 21386, 24310, 26455, 27676, 31790, 32708, 34595, 37570, 40885, 41327, 42772, 48620, 52910, 53465, 63580, 69190, 75140, 81770, 82654, 89947, 105820, 106930, 117623, 138380, 139009, 163540, 165308, 179894, 206635, 213860, 235246, 278018, 359788, 413270, 449735, 470492, 556036, 588115, 695045, 826540, 899470, 1176230, 1390090, 1529099, 1798940, 2352460, 2780180, 3058198, 6116396, 7645495, 15290990, 30581980]

約数ペア:

[(1, 30581980), (2, 15290990), (4, 7645495), (5, 6116396), (10, 3058198), (11, 2780180), (13, 2352460), (17, 1798940), (20, 1529099), (22, 1390090), (26, 1176230), (34, 899470), (37, 826540), (44, 695045), (52, 588115), (55, 556036), (65, 470492), (68, 449735), (74, 413270), (85, 359788), (110, 278018), (130, 235246), (143, 213860), (148, 206635), (170, 179894), (185, 165308), (187, 163540), (220, 139009), (221, 138380), (260, 117623), (286, 106930), (289, 105820), (340, 89947), (370, 82654), (374, 81770), (407, 75140), (442, 69190), (481, 63580), (572, 53465), (578, 52910), (629, 48620), (715, 42772), (740, 41327), (748, 40885), (814, 37570), (884, 34595), (935, 32708), (962, 31790), (1105, 27676), (1156, 26455), (1258, 24310), (1430, 21386), (1445, 21164), (1628, 18785), (1870, 16354), (1924, 15895), (2035, 15028), (2210, 13838), (2405, 12716), (2431, 12580), (2516, 12155), (2860, 10693), (2890, 10582), (3145, 9724), (3179, 9620), (3740, 8177), (3757, 8140), (4070, 7514), (4420, 6919), (4810, 6358), (4862, 6290), (5291, 5780)]