74725720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 172573920

約数和(自身を除く): 97848200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 157, 163, 292, 314, 326, 365, 584, 628, 652, 730, 785, 815, 1256, 1304, 1460, 1570, 1630, 2920, 3140, 3260, 6280, 6520, 11461, 11899, 22922, 23798, 25591, 45844, 47596, 51182, 57305, 59495, 91688, 95192, 102364, 114610, 118990, 127955, 204728, 229220, 237980, 255910, 458440, 475960, 511820, 1023640, 1868143, 3736286, 7472572, 9340715, 14945144, 18681430, 37362860, 74725720]

約数ペア:

[(1, 74725720), (2, 37362860), (4, 18681430), (5, 14945144), (8, 9340715), (10, 7472572), (20, 3736286), (40, 1868143), (73, 1023640), (146, 511820), (157, 475960), (163, 458440), (292, 255910), (314, 237980), (326, 229220), (365, 204728), (584, 127955), (628, 118990), (652, 114610), (730, 102364), (785, 95192), (815, 91688), (1256, 59495), (1304, 57305), (1460, 51182), (1570, 47596), (1630, 45844), (2920, 25591), (3140, 23798), (3260, 22922), (6280, 11899), (6520, 11461)]