51959360

素因数分解:

$2^6\times 5^1\times {\mathrm{397}}^1\times {\mathrm{409}}^1$

素因数の和:823

約数の個数: 56

約数和(自身を含む): 124343160

約数和(自身を除く): 72383800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 397, 409, 794, 818, 1588, 1636, 1985, 2045, 3176, 3272, 3970, 4090, 6352, 6544, 7940, 8180, 12704, 13088, 15880, 16360, 25408, 26176, 31760, 32720, 63520, 65440, 127040, 130880, 162373, 324746, 649492, 811865, 1298984, 1623730, 2597968, 3247460, 5195936, 6494920, 10391872, 12989840, 25979680, 51959360]

約数ペア:

[(1, 51959360), (2, 25979680), (4, 12989840), (5, 10391872), (8, 6494920), (10, 5195936), (16, 3247460), (20, 2597968), (32, 1623730), (40, 1298984), (64, 811865), (80, 649492), (160, 324746), (320, 162373), (397, 130880), (409, 127040), (794, 65440), (818, 63520), (1588, 32720), (1636, 31760), (1985, 26176), (2045, 25408), (3176, 16360), (3272, 15880), (3970, 13088), (4090, 12704), (6352, 8180), (6544, 7940)]