687798980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:489

約数の個数: 96

約数和(自身を含む): 1610219520

約数和(自身を除く): 922420540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 127, 206, 220, 239, 254, 412, 478, 508, 515, 635, 956, 1030, 1133, 1195, 1270, 1397, 2060, 2266, 2390, 2540, 2629, 2794, 4532, 4780, 5258, 5588, 5665, 6985, 10516, 11330, 13081, 13145, 13970, 22660, 24617, 26162, 26290, 27940, 30353, 49234, 52324, 52580, 60706, 65405, 98468, 121412, 123085, 130810, 143891, 151765, 246170, 261620, 270787, 287782, 303530, 333883, 492340, 541574, 575564, 607060, 667766, 719455, 1083148, 1335532, 1353935, 1438910, 1669415, 2707870, 2877820, 3126359, 3338830, 5415740, 6252718, 6677660, 12505436, 15631795, 31263590, 34389949, 62527180, 68779898, 137559796, 171949745, 343899490, 687798980]

約数ペア:

[(1, 687798980), (2, 343899490), (4, 171949745), (5, 137559796), (10, 68779898), (11, 62527180), (20, 34389949), (22, 31263590), (44, 15631795), (55, 12505436), (103, 6677660), (110, 6252718), (127, 5415740), (206, 3338830), (220, 3126359), (239, 2877820), (254, 2707870), (412, 1669415), (478, 1438910), (508, 1353935), (515, 1335532), (635, 1083148), (956, 719455), (1030, 667766), (1133, 607060), (1195, 575564), (1270, 541574), (1397, 492340), (2060, 333883), (2266, 303530), (2390, 287782), (2540, 270787), (2629, 261620), (2794, 246170), (4532, 151765), (4780, 143891), (5258, 130810), (5588, 123085), (5665, 121412), (6985, 98468), (10516, 65405), (11330, 60706), (13081, 52580), (13145, 52324), (13970, 49234), (22660, 30353), (24617, 27940), (26162, 26290)]