81017240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1\times {\mathrm{421}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 194153760

約数和(自身を除く): 113136520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 283, 340, 421, 566, 680, 842, 1132, 1415, 1684, 2105, 2264, 2830, 3368, 4210, 4811, 5660, 7157, 8420, 9622, 11320, 14314, 16840, 19244, 24055, 28628, 35785, 38488, 48110, 57256, 71570, 96220, 119143, 143140, 192440, 238286, 286280, 476572, 595715, 953144, 1191430, 2025431, 2382860, 4050862, 4765720, 8101724, 10127155, 16203448, 20254310, 40508620, 81017240]

約数ペア:

[(1, 81017240), (2, 40508620), (4, 20254310), (5, 16203448), (8, 10127155), (10, 8101724), (17, 4765720), (20, 4050862), (34, 2382860), (40, 2025431), (68, 1191430), (85, 953144), (136, 595715), (170, 476572), (283, 286280), (340, 238286), (421, 192440), (566, 143140), (680, 119143), (842, 96220), (1132, 71570), (1415, 57256), (1684, 48110), (2105, 38488), (2264, 35785), (2830, 28628), (3368, 24055), (4210, 19244), (4811, 16840), (5660, 14314), (7157, 11320), (8420, 9622)]