15801940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 42835968

約数和(自身を除く): 27034028

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 331, 341, 385, 434, 620, 662, 682, 770, 868, 1085, 1324, 1364, 1540, 1655, 1705, 2170, 2317, 2387, 3310, 3410, 3641, 4340, 4634, 4774, 6620, 6820, 7282, 9268, 9548, 10261, 11585, 11935, 14564, 18205, 20522, 23170, 23870, 25487, 36410, 41044, 46340, 47740, 50974, 51305, 71827, 72820, 101948, 102610, 112871, 127435, 143654, 205220, 225742, 254870, 287308, 359135, 451484, 509740, 564355, 718270, 790097, 1128710, 1436540, 1580194, 2257420, 3160388, 3950485, 7900970, 15801940]

約数ペア:

[(1, 15801940), (2, 7900970), (4, 3950485), (5, 3160388), (7, 2257420), (10, 1580194), (11, 1436540), (14, 1128710), (20, 790097), (22, 718270), (28, 564355), (31, 509740), (35, 451484), (44, 359135), (55, 287308), (62, 254870), (70, 225742), (77, 205220), (110, 143654), (124, 127435), (140, 112871), (154, 102610), (155, 101948), (217, 72820), (220, 71827), (308, 51305), (310, 50974), (331, 47740), (341, 46340), (385, 41044), (434, 36410), (620, 25487), (662, 23870), (682, 23170), (770, 20522), (868, 18205), (1085, 14564), (1324, 11935), (1364, 11585), (1540, 10261), (1655, 9548), (1705, 9268), (2170, 7282), (2317, 6820), (2387, 6620), (3310, 4774), (3410, 4634), (3641, 4340)]