68721880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59243}}^1$

素因数の和:59283

約数の個数: 32

約数和(自身を含む): 159958800

約数和(自身を除く): 91236920

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 59243, 118486, 236972, 296215, 473944, 592430, 1184860, 1718047, 2369720, 3436094, 6872188, 8590235, 13744376, 17180470, 34360940, 68721880]

約数ペア:

[(1, 68721880), (2, 34360940), (4, 17180470), (5, 13744376), (8, 8590235), (10, 6872188), (20, 3436094), (29, 2369720), (40, 1718047), (58, 1184860), (116, 592430), (145, 473944), (232, 296215), (290, 236972), (580, 118486), (1160, 59243)]