84505720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{997}}^1$

素因数の和:1184

約数の個数: 64

約数和(自身を含む): 206226720

約数和(自身を除く): 121721000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 163, 260, 326, 520, 652, 815, 997, 1304, 1630, 1994, 2119, 3260, 3988, 4238, 4985, 6520, 7976, 8476, 9970, 10595, 12961, 16952, 19940, 21190, 25922, 39880, 42380, 51844, 64805, 84760, 103688, 129610, 162511, 259220, 325022, 518440, 650044, 812555, 1300088, 1625110, 2112643, 3250220, 4225286, 6500440, 8450572, 10563215, 16901144, 21126430, 42252860, 84505720]

約数ペア:

[(1, 84505720), (2, 42252860), (4, 21126430), (5, 16901144), (8, 10563215), (10, 8450572), (13, 6500440), (20, 4225286), (26, 3250220), (40, 2112643), (52, 1625110), (65, 1300088), (104, 812555), (130, 650044), (163, 518440), (260, 325022), (326, 259220), (520, 162511), (652, 129610), (815, 103688), (997, 84760), (1304, 64805), (1630, 51844), (1994, 42380), (2119, 39880), (3260, 25922), (3988, 21190), (4238, 19940), (4985, 16952), (6520, 12961), (7976, 10595), (8476, 9970)]