78711680

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6473}}^1$

素因数の和:6511

約数の個数: 64

約数和(自身を含む): 198104400

約数和(自身を除く): 119392720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 6473, 12160, 12946, 25892, 32365, 51784, 64730, 103568, 122987, 129460, 207136, 245974, 258920, 414272, 491948, 517840, 614935, 828544, 983896, 1035680, 1229870, 1967792, 2071360, 2459740, 3935584, 4142720, 4919480, 7871168, 9838960, 15742336, 19677920, 39355840, 78711680]

約数ペア:

[(1, 78711680), (2, 39355840), (4, 19677920), (5, 15742336), (8, 9838960), (10, 7871168), (16, 4919480), (19, 4142720), (20, 3935584), (32, 2459740), (38, 2071360), (40, 1967792), (64, 1229870), (76, 1035680), (80, 983896), (95, 828544), (128, 614935), (152, 517840), (160, 491948), (190, 414272), (304, 258920), (320, 245974), (380, 207136), (608, 129460), (640, 122987), (760, 103568), (1216, 64730), (1520, 51784), (2432, 32365), (3040, 25892), (6080, 12946), (6473, 12160)]