31240760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{11657}}^1$

素因数の和:11735

約数の個数: 32

約数和(自身を含む): 71346960

約数和(自身を除く): 40106200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 11657, 23314, 46628, 58285, 93256, 116570, 233140, 466280, 781019, 1562038, 3124076, 3905095, 6248152, 7810190, 15620380, 31240760]

約数ペア:

[(1, 31240760), (2, 15620380), (4, 7810190), (5, 6248152), (8, 3905095), (10, 3124076), (20, 1562038), (40, 781019), (67, 466280), (134, 233140), (268, 116570), (335, 93256), (536, 58285), (670, 46628), (1340, 23314), (2680, 11657)]