20320304360

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1\times {\mathrm{17321}}^1$

素因数の和:17682

約数の個数: 64

約数和(自身を含む): 46270526400

約数和(自身を除く): 25950222040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 211, 278, 422, 556, 695, 844, 1055, 1112, 1390, 1688, 2110, 2780, 4220, 5560, 8440, 17321, 29329, 34642, 58658, 69284, 86605, 117316, 138568, 146645, 173210, 234632, 293290, 346420, 586580, 692840, 1173160, 2407619, 3654731, 4815238, 7309462, 9630476, 12038095, 14618924, 18273655, 19260952, 24076190, 29237848, 36547310, 48152380, 73094620, 96304760, 146189240, 508007609, 1016015218, 2032030436, 2540038045, 4064060872, 5080076090, 10160152180, 20320304360]

約数ペア:

[(1, 20320304360), (2, 10160152180), (4, 5080076090), (5, 4064060872), (8, 2540038045), (10, 2032030436), (20, 1016015218), (40, 508007609), (139, 146189240), (211, 96304760), (278, 73094620), (422, 48152380), (556, 36547310), (695, 29237848), (844, 24076190), (1055, 19260952), (1112, 18273655), (1390, 14618924), (1688, 12038095), (2110, 9630476), (2780, 7309462), (4220, 4815238), (5560, 3654731), (8440, 2407619), (17321, 1173160), (29329, 692840), (34642, 586580), (58658, 346420), (69284, 293290), (86605, 234632), (117316, 173210), (138568, 146645)]