40172080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{107}}^1$

素因数の和:171

約数の個数: 120

約数和(自身を含む): 107149392

約数和(自身を除く): 66977312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 107, 130, 152, 190, 208, 214, 247, 260, 304, 361, 380, 428, 494, 520, 535, 722, 760, 856, 988, 1040, 1070, 1235, 1391, 1444, 1520, 1712, 1805, 1976, 2033, 2140, 2470, 2782, 2888, 3610, 3952, 4066, 4280, 4693, 4940, 5564, 5776, 6955, 7220, 8132, 8560, 9386, 9880, 10165, 11128, 13910, 14440, 16264, 18772, 19760, 20330, 22256, 23465, 26429, 27820, 28880, 32528, 37544, 38627, 40660, 46930, 52858, 55640, 75088, 77254, 81320, 93860, 105716, 111280, 132145, 154508, 162640, 187720, 193135, 211432, 264290, 309016, 375440, 386270, 422864, 502151, 528580, 618032, 772540, 1004302, 1057160, 1545080, 2008604, 2114320, 2510755, 3090160, 4017208, 5021510, 8034416, 10043020, 20086040, 40172080]

約数ペア:

[(1, 40172080), (2, 20086040), (4, 10043020), (5, 8034416), (8, 5021510), (10, 4017208), (13, 3090160), (16, 2510755), (19, 2114320), (20, 2008604), (26, 1545080), (38, 1057160), (40, 1004302), (52, 772540), (65, 618032), (76, 528580), (80, 502151), (95, 422864), (104, 386270), (107, 375440), (130, 309016), (152, 264290), (190, 211432), (208, 193135), (214, 187720), (247, 162640), (260, 154508), (304, 132145), (361, 111280), (380, 105716), (428, 93860), (494, 81320), (520, 77254), (535, 75088), (722, 55640), (760, 52858), (856, 46930), (988, 40660), (1040, 38627), (1070, 37544), (1235, 32528), (1391, 28880), (1444, 27820), (1520, 26429), (1712, 23465), (1805, 22256), (1976, 20330), (2033, 19760), (2140, 18772), (2470, 16264), (2782, 14440), (2888, 13910), (3610, 11128), (3952, 10165), (4066, 9880), (4280, 9386), (4693, 8560), (4940, 8132), (5564, 7220), (5776, 6955)]