640130656

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{5333}}^1$

素因数の和:5396

約数の個数: 72

約数和(自身を含む): 1430194752

約数和(自身を除く): 790064096

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 121, 124, 176, 242, 248, 341, 352, 484, 496, 682, 968, 992, 1364, 1936, 2728, 3751, 3872, 5333, 5456, 7502, 10666, 10912, 15004, 21332, 30008, 42664, 58663, 60016, 85328, 117326, 120032, 165323, 170656, 234652, 330646, 469304, 645293, 661292, 938608, 1290586, 1322584, 1818553, 1877216, 2581172, 2645168, 3637106, 5162344, 5290336, 7274212, 10324688, 14548424, 20004083, 20649376, 29096848, 40008166, 58193696, 80016332, 160032664, 320065328, 640130656]

約数ペア:

[(1, 640130656), (2, 320065328), (4, 160032664), (8, 80016332), (11, 58193696), (16, 40008166), (22, 29096848), (31, 20649376), (32, 20004083), (44, 14548424), (62, 10324688), (88, 7274212), (121, 5290336), (124, 5162344), (176, 3637106), (242, 2645168), (248, 2581172), (341, 1877216), (352, 1818553), (484, 1322584), (496, 1290586), (682, 938608), (968, 661292), (992, 645293), (1364, 469304), (1936, 330646), (2728, 234652), (3751, 170656), (3872, 165323), (5333, 120032), (5456, 117326), (7502, 85328), (10666, 60016), (10912, 58663), (15004, 42664), (21332, 30008)]