1777840

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 4205088

約数和(自身を除く): 2427248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 313, 355, 568, 626, 710, 1136, 1252, 1420, 1565, 2504, 2840, 3130, 5008, 5680, 6260, 12520, 22223, 25040, 44446, 88892, 111115, 177784, 222230, 355568, 444460, 888920, 1777840]

約数ペア:

[(1, 1777840), (2, 888920), (4, 444460), (5, 355568), (8, 222230), (10, 177784), (16, 111115), (20, 88892), (40, 44446), (71, 25040), (80, 22223), (142, 12520), (284, 6260), (313, 5680), (355, 5008), (568, 3130), (626, 2840), (710, 2504), (1136, 1565), (1252, 1420)]