21954160

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9463}}^1$

素因数の和:9505

約数の個数: 40

約数和(自身を含む): 52809120

約数和(自身を除く): 30854960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9463, 18926, 37852, 47315, 75704, 94630, 151408, 189260, 274427, 378520, 548854, 757040, 1097708, 1372135, 2195416, 2744270, 4390832, 5488540, 10977080, 21954160]

約数ペア:

[(1, 21954160), (2, 10977080), (4, 5488540), (5, 4390832), (8, 2744270), (10, 2195416), (16, 1372135), (20, 1097708), (29, 757040), (40, 548854), (58, 378520), (80, 274427), (116, 189260), (145, 151408), (232, 94630), (290, 75704), (464, 47315), (580, 37852), (1160, 18926), (2320, 9463)]