28156920870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{5987}}^1$

素因数の和:6430

約数の個数: 128

約数和(自身を含む): 75328081920

約数和(自身を除く): 47171161050

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 389, 390, 403, 465, 778, 806, 930, 1167, 1209, 1945, 2015, 2334, 2418, 3890, 4030, 5057, 5835, 5987, 6045, 10114, 11670, 11974, 12059, 12090, 15171, 17961, 24118, 25285, 29935, 30342, 35922, 36177, 50570, 59870, 60295, 72354, 75855, 77831, 89805, 120590, 151710, 155662, 156767, 179610, 180885, 185597, 233493, 313534, 361770, 371194, 389155, 466986, 470301, 556791, 778310, 783835, 927985, 940602, 1113582, 1167465, 1567670, 1855970, 2328943, 2334930, 2351505, 2412761, 2783955, 4657886, 4703010, 4825522, 5567910, 6986829, 7238283, 11644715, 12063805, 13973658, 14476566, 23289430, 24127610, 30276259, 34934145, 36191415, 60552518, 69868290, 72197233, 72382830, 90828777, 144394466, 151381295, 181657554, 216591699, 302762590, 360986165, 433183398, 454143885, 721972330, 908287770, 938564029, 1082958495, 1877128058, 2165916990, 2815692087, 4692820145, 5631384174, 9385640290, 14078460435, 28156920870]

約数ペア:

[(1, 28156920870), (2, 14078460435), (3, 9385640290), (5, 5631384174), (6, 4692820145), (10, 2815692087), (13, 2165916990), (15, 1877128058), (26, 1082958495), (30, 938564029), (31, 908287770), (39, 721972330), (62, 454143885), (65, 433183398), (78, 360986165), (93, 302762590), (130, 216591699), (155, 181657554), (186, 151381295), (195, 144394466), (310, 90828777), (389, 72382830), (390, 72197233), (403, 69868290), (465, 60552518), (778, 36191415), (806, 34934145), (930, 30276259), (1167, 24127610), (1209, 23289430), (1945, 14476566), (2015, 13973658), (2334, 12063805), (2418, 11644715), (3890, 7238283), (4030, 6986829), (5057, 5567910), (5835, 4825522), (5987, 4703010), (6045, 4657886), (10114, 2783955), (11670, 2412761), (11974, 2351505), (12059, 2334930), (12090, 2328943), (15171, 1855970), (17961, 1567670), (24118, 1167465), (25285, 1113582), (29935, 940602), (30342, 927985), (35922, 783835), (36177, 778310), (50570, 556791), (59870, 470301), (60295, 466986), (72354, 389155), (75855, 371194), (77831, 361770), (89805, 313534), (120590, 233493), (151710, 185597), (155662, 180885), (156767, 179610)]