4390840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3541}}^1$

素因数の和:3583

約数の個数: 32

約数和(自身を含む): 10200960

約数和(自身を除く): 5810120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 3541, 7082, 14164, 17705, 28328, 35410, 70820, 109771, 141640, 219542, 439084, 548855, 878168, 1097710, 2195420, 4390840]

約数ペア:

[(1, 4390840), (2, 2195420), (4, 1097710), (5, 878168), (8, 548855), (10, 439084), (20, 219542), (31, 141640), (40, 109771), (62, 70820), (124, 35410), (155, 28328), (248, 17705), (310, 14164), (620, 7082), (1240, 3541)]