81544360

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{30427}}^1$

素因数の和:30505

約数の個数: 32

約数和(自身を含む): 186219360

約数和(自身を除く): 104675000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 30427, 60854, 121708, 152135, 243416, 304270, 608540, 1217080, 2038609, 4077218, 8154436, 10193045, 16308872, 20386090, 40772180, 81544360]

約数ペア:

[(1, 81544360), (2, 40772180), (4, 20386090), (5, 16308872), (8, 10193045), (10, 8154436), (20, 4077218), (40, 2038609), (67, 1217080), (134, 608540), (268, 304270), (335, 243416), (536, 152135), (670, 121708), (1340, 60854), (2680, 30427)]