31540516

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 68947200

約数和(自身を除く): 37406684

約数列:

[1, 2, 4, 7, 14, 28, 29, 31, 49, 58, 62, 98, 116, 124, 179, 196, 203, 217, 358, 406, 434, 716, 812, 868, 899, 1253, 1421, 1519, 1798, 2506, 2842, 3038, 3596, 5012, 5191, 5549, 5684, 6076, 6293, 8771, 10382, 11098, 12586, 17542, 20764, 22196, 25172, 35084, 36337, 38843, 44051, 72674, 77686, 88102, 145348, 155372, 160921, 176204, 254359, 271901, 321842, 508718, 543802, 643684, 1017436, 1087604, 1126447, 2252894, 4505788, 7885129, 15770258, 31540516]

約数ペア:

[(1, 31540516), (2, 15770258), (4, 7885129), (7, 4505788), (14, 2252894), (28, 1126447), (29, 1087604), (31, 1017436), (49, 643684), (58, 543802), (62, 508718), (98, 321842), (116, 271901), (124, 254359), (179, 176204), (196, 160921), (203, 155372), (217, 145348), (358, 88102), (406, 77686), (434, 72674), (716, 44051), (812, 38843), (868, 36337), (899, 35084), (1253, 25172), (1421, 22196), (1519, 20764), (1798, 17542), (2506, 12586), (2842, 11098), (3038, 10382), (3596, 8771), (5012, 6293), (5191, 6076), (5549, 5684)]