78397120

素因数分解:

$2^6\times 5^1\times {\mathrm{409}}^1\times {\mathrm{599}}^1$

素因数の和:1025

約数の個数: 56

約数和(自身を含む): 187452000

約数和(自身を除く): 109054880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 409, 599, 818, 1198, 1636, 2045, 2396, 2995, 3272, 4090, 4792, 5990, 6544, 8180, 9584, 11980, 13088, 16360, 19168, 23960, 26176, 32720, 38336, 47920, 65440, 95840, 130880, 191680, 244991, 489982, 979964, 1224955, 1959928, 2449910, 3919856, 4899820, 7839712, 9799640, 15679424, 19599280, 39198560, 78397120]

約数ペア:

[(1, 78397120), (2, 39198560), (4, 19599280), (5, 15679424), (8, 9799640), (10, 7839712), (16, 4899820), (20, 3919856), (32, 2449910), (40, 1959928), (64, 1224955), (80, 979964), (160, 489982), (320, 244991), (409, 191680), (599, 130880), (818, 95840), (1198, 65440), (1636, 47920), (2045, 38336), (2396, 32720), (2995, 26176), (3272, 23960), (4090, 19168), (4792, 16360), (5990, 13088), (6544, 11980), (8180, 9584)]