18490240

素因数分解:

$2^7\times 5^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 44724960

約数和(自身を除く): 26234720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 173, 320, 334, 346, 640, 668, 692, 835, 865, 1336, 1384, 1670, 1730, 2672, 2768, 3340, 3460, 5344, 5536, 6680, 6920, 10688, 11072, 13360, 13840, 21376, 22144, 26720, 27680, 28891, 53440, 55360, 57782, 106880, 110720, 115564, 144455, 231128, 288910, 462256, 577820, 924512, 1155640, 1849024, 2311280, 3698048, 4622560, 9245120, 18490240]

約数ペア:

[(1, 18490240), (2, 9245120), (4, 4622560), (5, 3698048), (8, 2311280), (10, 1849024), (16, 1155640), (20, 924512), (32, 577820), (40, 462256), (64, 288910), (80, 231128), (128, 144455), (160, 115564), (167, 110720), (173, 106880), (320, 57782), (334, 55360), (346, 53440), (640, 28891), (668, 27680), (692, 26720), (835, 22144), (865, 21376), (1336, 13840), (1384, 13360), (1670, 11072), (1730, 10688), (2672, 6920), (2768, 6680), (3340, 5536), (3460, 5344)]