70789720

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4327}}^1$

素因数の和:4747

約数の個数: 32

約数和(自身を含む): 159703200

約数和(自身を除く): 88913480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 4327, 8180, 8654, 16360, 17308, 21635, 34616, 43270, 86540, 173080, 1769743, 3539486, 7078972, 8848715, 14157944, 17697430, 35394860, 70789720]

約数ペア:

[(1, 70789720), (2, 35394860), (4, 17697430), (5, 14157944), (8, 8848715), (10, 7078972), (20, 3539486), (40, 1769743), (409, 173080), (818, 86540), (1636, 43270), (2045, 34616), (3272, 21635), (4090, 17308), (4327, 16360), (8180, 8654)]