779566580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 1906128000

約数和(自身を除く): 1126561420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 61, 65, 76, 95, 122, 130, 169, 190, 199, 244, 247, 260, 305, 338, 380, 398, 494, 610, 676, 793, 796, 845, 988, 995, 1159, 1220, 1235, 1586, 1690, 1990, 2318, 2470, 2587, 3172, 3211, 3380, 3781, 3965, 3980, 4636, 4940, 5174, 5795, 6422, 7562, 7930, 10309, 10348, 11590, 12139, 12844, 12935, 15067, 15124, 15860, 16055, 18905, 20618, 23180, 24278, 25870, 30134, 32110, 33631, 37810, 41236, 48556, 49153, 51545, 51740, 60268, 60695, 64220, 67262, 75335, 75620, 98306, 103090, 121390, 134524, 150670, 157807, 168155, 195871, 196612, 206180, 230641, 242780, 245765, 301340, 315614, 336310, 391742, 461282, 491530, 631228, 638989, 672620, 783484, 789035, 922564, 979355, 983060, 1153205, 1277978, 1578070, 1958710, 2051491, 2306410, 2555956, 2998333, 3156140, 3194945, 3917420, 4102982, 4612820, 5996666, 6389890, 8205964, 10257455, 11993332, 12779780, 14991665, 20514910, 29983330, 38978329, 41029820, 59966660, 77956658, 155913316, 194891645, 389783290, 779566580]

約数ペア:

[(1, 779566580), (2, 389783290), (4, 194891645), (5, 155913316), (10, 77956658), (13, 59966660), (19, 41029820), (20, 38978329), (26, 29983330), (38, 20514910), (52, 14991665), (61, 12779780), (65, 11993332), (76, 10257455), (95, 8205964), (122, 6389890), (130, 5996666), (169, 4612820), (190, 4102982), (199, 3917420), (244, 3194945), (247, 3156140), (260, 2998333), (305, 2555956), (338, 2306410), (380, 2051491), (398, 1958710), (494, 1578070), (610, 1277978), (676, 1153205), (793, 983060), (796, 979355), (845, 922564), (988, 789035), (995, 783484), (1159, 672620), (1220, 638989), (1235, 631228), (1586, 491530), (1690, 461282), (1990, 391742), (2318, 336310), (2470, 315614), (2587, 301340), (3172, 245765), (3211, 242780), (3380, 230641), (3781, 206180), (3965, 196612), (3980, 195871), (4636, 168155), (4940, 157807), (5174, 150670), (5795, 134524), (6422, 121390), (7562, 103090), (7930, 98306), (10309, 75620), (10348, 75335), (11590, 67262), (12139, 64220), (12844, 60695), (12935, 60268), (15067, 51740), (15124, 51545), (15860, 49153), (16055, 48556), (18905, 41236), (20618, 37810), (23180, 33631), (24278, 32110), (25870, 30134)]