16215680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1949}}^1$

素因数の和:1981

約数の個数: 64

約数和(自身を含む): 41769000

約数和(自身を除く): 25553320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 1949, 2080, 3898, 4160, 7796, 8320, 9745, 15592, 19490, 25337, 31184, 38980, 50674, 62368, 77960, 101348, 124736, 126685, 155920, 202696, 249472, 253370, 311840, 405392, 506740, 623680, 810784, 1013480, 1247360, 1621568, 2026960, 3243136, 4053920, 8107840, 16215680]

約数ペア:

[(1, 16215680), (2, 8107840), (4, 4053920), (5, 3243136), (8, 2026960), (10, 1621568), (13, 1247360), (16, 1013480), (20, 810784), (26, 623680), (32, 506740), (40, 405392), (52, 311840), (64, 253370), (65, 249472), (80, 202696), (104, 155920), (128, 126685), (130, 124736), (160, 101348), (208, 77960), (260, 62368), (320, 50674), (416, 38980), (520, 31184), (640, 25337), (832, 19490), (1040, 15592), (1664, 9745), (1949, 8320), (2080, 7796), (3898, 4160)]