261856920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{733}}^1$

素因数の和:989

約数の個数: 128

約数和(自身を含む): 850852800

約数和(自身を除く): 588995880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 229, 260, 312, 390, 458, 520, 687, 733, 780, 916, 1145, 1374, 1466, 1560, 1832, 2199, 2290, 2748, 2932, 2977, 3435, 3665, 4398, 4580, 5496, 5864, 5954, 6870, 7330, 8796, 8931, 9160, 9529, 10995, 11908, 13740, 14660, 14885, 17592, 17862, 19058, 21990, 23816, 27480, 28587, 29320, 29770, 35724, 38116, 43980, 44655, 47645, 57174, 59540, 71448, 76232, 87960, 89310, 95290, 114348, 119080, 142935, 167857, 178620, 190580, 228696, 285870, 335714, 357240, 381160, 503571, 571740, 671428, 839285, 1007142, 1143480, 1342856, 1678570, 2014284, 2182141, 2517855, 3357140, 4028568, 4364282, 5035710, 6546423, 6714280, 8728564, 10071420, 10910705, 13092846, 17457128, 20142840, 21821410, 26185692, 32732115, 43642820, 52371384, 65464230, 87285640, 130928460, 261856920]

約数ペア:

[(1, 261856920), (2, 130928460), (3, 87285640), (4, 65464230), (5, 52371384), (6, 43642820), (8, 32732115), (10, 26185692), (12, 21821410), (13, 20142840), (15, 17457128), (20, 13092846), (24, 10910705), (26, 10071420), (30, 8728564), (39, 6714280), (40, 6546423), (52, 5035710), (60, 4364282), (65, 4028568), (78, 3357140), (104, 2517855), (120, 2182141), (130, 2014284), (156, 1678570), (195, 1342856), (229, 1143480), (260, 1007142), (312, 839285), (390, 671428), (458, 571740), (520, 503571), (687, 381160), (733, 357240), (780, 335714), (916, 285870), (1145, 228696), (1374, 190580), (1466, 178620), (1560, 167857), (1832, 142935), (2199, 119080), (2290, 114348), (2748, 95290), (2932, 89310), (2977, 87960), (3435, 76232), (3665, 71448), (4398, 59540), (4580, 57174), (5496, 47645), (5864, 44655), (5954, 43980), (6870, 38116), (7330, 35724), (8796, 29770), (8931, 29320), (9160, 28587), (9529, 27480), (10995, 23816), (11908, 21990), (13740, 19058), (14660, 17862), (14885, 17592)]