20845360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11329}}^1$

素因数の和:11365

約数の個数: 40

約数和(自身を含む): 50577120

約数和(自身を除く): 29731760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11329, 22658, 45316, 56645, 90632, 113290, 181264, 226580, 260567, 453160, 521134, 906320, 1042268, 1302835, 2084536, 2605670, 4169072, 5211340, 10422680, 20845360]

約数ペア:

[(1, 20845360), (2, 10422680), (4, 5211340), (5, 4169072), (8, 2605670), (10, 2084536), (16, 1302835), (20, 1042268), (23, 906320), (40, 521134), (46, 453160), (80, 260567), (92, 226580), (115, 181264), (184, 113290), (230, 90632), (368, 56645), (460, 45316), (920, 22658), (1840, 11329)]