30838960

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{971}}^1$

素因数の和:1381

約数の個数: 40

約数和(自身を含む): 71955216

約数和(自身を除く): 41116256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 971, 1588, 1942, 1985, 3176, 3884, 3970, 4855, 6352, 7768, 7940, 9710, 15536, 15880, 19420, 31760, 38840, 77680, 385487, 770974, 1541948, 1927435, 3083896, 3854870, 6167792, 7709740, 15419480, 30838960]

約数ペア:

[(1, 30838960), (2, 15419480), (4, 7709740), (5, 6167792), (8, 3854870), (10, 3083896), (16, 1927435), (20, 1541948), (40, 770974), (80, 385487), (397, 77680), (794, 38840), (971, 31760), (1588, 19420), (1942, 15880), (1985, 15536), (3176, 9710), (3884, 7940), (3970, 7768), (4855, 6352)]