31428880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{56123}}^1$

素因数の和:56143

約数の個数: 40

約数和(自身を含む): 83512512

約数和(自身を除く): 52083632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 56123, 112246, 224492, 280615, 392861, 448984, 561230, 785722, 897968, 1122460, 1571444, 1964305, 2244920, 3142888, 3928610, 4489840, 6285776, 7857220, 15714440, 31428880]

約数ペア:

[(1, 31428880), (2, 15714440), (4, 7857220), (5, 6285776), (7, 4489840), (8, 3928610), (10, 3142888), (14, 2244920), (16, 1964305), (20, 1571444), (28, 1122460), (35, 897968), (40, 785722), (56, 561230), (70, 448984), (80, 392861), (112, 280615), (140, 224492), (280, 112246), (560, 56123)]