19140640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 30501344

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 155, 160, 170, 227, 248, 272, 310, 340, 454, 496, 527, 544, 620, 680, 908, 992, 1054, 1135, 1240, 1360, 1816, 2108, 2270, 2480, 2635, 2720, 3632, 3859, 4216, 4540, 4960, 5270, 7037, 7264, 7718, 8432, 9080, 10540, 14074, 15436, 16864, 18160, 19295, 21080, 28148, 30872, 35185, 36320, 38590, 42160, 56296, 61744, 70370, 77180, 84320, 112592, 119629, 123488, 140740, 154360, 225184, 239258, 281480, 308720, 478516, 562960, 598145, 617440, 957032, 1125920, 1196290, 1914064, 2392580, 3828128, 4785160, 9570320, 19140640]

約数ペア:

[(1, 19140640), (2, 9570320), (4, 4785160), (5, 3828128), (8, 2392580), (10, 1914064), (16, 1196290), (17, 1125920), (20, 957032), (31, 617440), (32, 598145), (34, 562960), (40, 478516), (62, 308720), (68, 281480), (80, 239258), (85, 225184), (124, 154360), (136, 140740), (155, 123488), (160, 119629), (170, 112592), (227, 84320), (248, 77180), (272, 70370), (310, 61744), (340, 56296), (454, 42160), (496, 38590), (527, 36320), (544, 35185), (620, 30872), (680, 28148), (908, 21080), (992, 19295), (1054, 18160), (1135, 16864), (1240, 15436), (1360, 14074), (1816, 10540), (2108, 9080), (2270, 8432), (2480, 7718), (2635, 7264), (2720, 7037), (3632, 5270), (3859, 4960), (4216, 4540)]