31880346880

素因数分解:

$2^8\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{12497}}^1$

素因数の和:14511

約数の個数: 72

約数和(自身を含む): 76407822792

約数和(自身を除く): 44527475912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1993, 3986, 7972, 9965, 12497, 15944, 19930, 24994, 31888, 39860, 49988, 62485, 63776, 79720, 99976, 124970, 127552, 159440, 199952, 249940, 255104, 318880, 399904, 499880, 510208, 637760, 799808, 999760, 1275520, 1599616, 1999520, 2551040, 3199232, 3999040, 7998080, 15996160, 24906521, 49813042, 99626084, 124532605, 199252168, 249065210, 398504336, 498130420, 797008672, 996260840, 1594017344, 1992521680, 3188034688, 3985043360, 6376069376, 7970086720, 15940173440, 31880346880]

約数ペア:

[(1, 31880346880), (2, 15940173440), (4, 7970086720), (5, 6376069376), (8, 3985043360), (10, 3188034688), (16, 1992521680), (20, 1594017344), (32, 996260840), (40, 797008672), (64, 498130420), (80, 398504336), (128, 249065210), (160, 199252168), (256, 124532605), (320, 99626084), (640, 49813042), (1280, 24906521), (1993, 15996160), (3986, 7998080), (7972, 3999040), (9965, 3199232), (12497, 2551040), (15944, 1999520), (19930, 1599616), (24994, 1275520), (31888, 999760), (39860, 799808), (49988, 637760), (62485, 510208), (63776, 499880), (79720, 399904), (99976, 318880), (124970, 255104), (127552, 249940), (159440, 199952)]