31047040

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 74970000

約数和(自身を除く): 43922960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 278, 320, 349, 556, 640, 695, 698, 1112, 1390, 1396, 1745, 2224, 2780, 2792, 3490, 4448, 5560, 5584, 6980, 8896, 11120, 11168, 13960, 17792, 22240, 22336, 27920, 44480, 44672, 48511, 55840, 88960, 97022, 111680, 194044, 223360, 242555, 388088, 485110, 776176, 970220, 1552352, 1940440, 3104704, 3880880, 6209408, 7761760, 15523520, 31047040]

約数ペア:

[(1, 31047040), (2, 15523520), (4, 7761760), (5, 6209408), (8, 3880880), (10, 3104704), (16, 1940440), (20, 1552352), (32, 970220), (40, 776176), (64, 485110), (80, 388088), (128, 242555), (139, 223360), (160, 194044), (278, 111680), (320, 97022), (349, 88960), (556, 55840), (640, 48511), (695, 44672), (698, 44480), (1112, 27920), (1390, 22336), (1396, 22240), (1745, 17792), (2224, 13960), (2780, 11168), (2792, 11120), (3490, 8896), (4448, 6980), (5560, 5584)]