81128216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{45887}}^1$

素因数の和:45923

約数の個数: 32

約数和(自身を含む): 173456640

約数和(自身を除く): 92328424

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 45887, 91774, 183548, 367096, 596531, 780079, 1193062, 1560158, 2386124, 3120316, 4772248, 6240632, 10141027, 20282054, 40564108, 81128216]

約数ペア:

[(1, 81128216), (2, 40564108), (4, 20282054), (8, 10141027), (13, 6240632), (17, 4772248), (26, 3120316), (34, 2386124), (52, 1560158), (68, 1193062), (104, 780079), (136, 596531), (221, 367096), (442, 183548), (884, 91774), (1768, 45887)]