207970040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{601}}^1$

素因数の和:864

約数の個数: 64

約数和(自身を含む): 482418720

約数和(自身を除く): 274448680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 211, 328, 410, 422, 601, 820, 844, 1055, 1202, 1640, 1688, 2110, 2404, 3005, 4220, 4808, 6010, 8440, 8651, 12020, 17302, 24040, 24641, 34604, 43255, 49282, 69208, 86510, 98564, 123205, 126811, 173020, 197128, 246410, 253622, 346040, 492820, 507244, 634055, 985640, 1014488, 1268110, 2536220, 5072440, 5199251, 10398502, 20797004, 25996255, 41594008, 51992510, 103985020, 207970040]

約数ペア:

[(1, 207970040), (2, 103985020), (4, 51992510), (5, 41594008), (8, 25996255), (10, 20797004), (20, 10398502), (40, 5199251), (41, 5072440), (82, 2536220), (164, 1268110), (205, 1014488), (211, 985640), (328, 634055), (410, 507244), (422, 492820), (601, 346040), (820, 253622), (844, 246410), (1055, 197128), (1202, 173020), (1640, 126811), (1688, 123205), (2110, 98564), (2404, 86510), (3005, 69208), (4220, 49282), (4808, 43255), (6010, 34604), (8440, 24641), (8651, 24040), (12020, 17302)]