81123796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 163162944

約数和(自身を除く): 82039148

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 163, 221, 326, 442, 563, 652, 884, 1126, 2119, 2252, 2771, 4238, 5542, 7319, 8476, 9571, 11084, 14638, 19142, 29276, 36023, 38284, 72046, 91769, 124423, 144092, 183538, 248846, 367076, 497692, 1192997, 1560073, 2385994, 3120146, 4771988, 6240292, 20280949, 40561898, 81123796]

約数ペア:

[(1, 81123796), (2, 40561898), (4, 20280949), (13, 6240292), (17, 4771988), (26, 3120146), (34, 2385994), (52, 1560073), (68, 1192997), (163, 497692), (221, 367076), (326, 248846), (442, 183538), (563, 144092), (652, 124423), (884, 91769), (1126, 72046), (2119, 38284), (2252, 36023), (2771, 29276), (4238, 19142), (5542, 14638), (7319, 11084), (8476, 9571)]