78173480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1493}}^1$

素因数の和:1539

約数の個数: 128

約数和(自身を含む): 232346880

約数和(自身を除く): 154173400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 140, 154, 170, 187, 220, 238, 280, 308, 340, 374, 385, 440, 476, 595, 616, 680, 748, 770, 935, 952, 1190, 1309, 1493, 1496, 1540, 1870, 2380, 2618, 2986, 3080, 3740, 4760, 5236, 5972, 6545, 7465, 7480, 10451, 10472, 11944, 13090, 14930, 16423, 20902, 25381, 26180, 29860, 32846, 41804, 50762, 52255, 52360, 59720, 65692, 82115, 83608, 101524, 104510, 114961, 126905, 131384, 164230, 177667, 203048, 209020, 229922, 253810, 279191, 328460, 355334, 418040, 459844, 507620, 558382, 574805, 656920, 710668, 888335, 919688, 1015240, 1116764, 1149610, 1395955, 1421336, 1776670, 1954337, 2233528, 2299220, 2791910, 3553340, 3908674, 4598440, 5583820, 7106680, 7817348, 9771685, 11167640, 15634696, 19543370, 39086740, 78173480]

約数ペア:

[(1, 78173480), (2, 39086740), (4, 19543370), (5, 15634696), (7, 11167640), (8, 9771685), (10, 7817348), (11, 7106680), (14, 5583820), (17, 4598440), (20, 3908674), (22, 3553340), (28, 2791910), (34, 2299220), (35, 2233528), (40, 1954337), (44, 1776670), (55, 1421336), (56, 1395955), (68, 1149610), (70, 1116764), (77, 1015240), (85, 919688), (88, 888335), (110, 710668), (119, 656920), (136, 574805), (140, 558382), (154, 507620), (170, 459844), (187, 418040), (220, 355334), (238, 328460), (280, 279191), (308, 253810), (340, 229922), (374, 209020), (385, 203048), (440, 177667), (476, 164230), (595, 131384), (616, 126905), (680, 114961), (748, 104510), (770, 101524), (935, 83608), (952, 82115), (1190, 65692), (1309, 59720), (1493, 52360), (1496, 52255), (1540, 50762), (1870, 41804), (2380, 32846), (2618, 29860), (2986, 26180), (3080, 25381), (3740, 20902), (4760, 16423), (5236, 14930), (5972, 13090), (6545, 11944), (7465, 10472), (7480, 10451)]