140500640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17921}}^1$

素因数の和:17950

約数の個数: 72

約数和(自身を含む): 386147412

約数和(自身を除く): 245646772

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 17921, 35842, 71684, 89605, 125447, 143368, 179210, 250894, 286736, 358420, 501788, 573472, 627235, 716840, 878129, 1003576, 1254470, 1433680, 1756258, 2007152, 2508940, 2867360, 3512516, 4014304, 4390645, 5017880, 7025032, 8781290, 10035760, 14050064, 17562580, 20071520, 28100128, 35125160, 70250320, 140500640]

約数ペア:

[(1, 140500640), (2, 70250320), (4, 35125160), (5, 28100128), (7, 20071520), (8, 17562580), (10, 14050064), (14, 10035760), (16, 8781290), (20, 7025032), (28, 5017880), (32, 4390645), (35, 4014304), (40, 3512516), (49, 2867360), (56, 2508940), (70, 2007152), (80, 1756258), (98, 1433680), (112, 1254470), (140, 1003576), (160, 878129), (196, 716840), (224, 627235), (245, 573472), (280, 501788), (392, 358420), (490, 286736), (560, 250894), (784, 179210), (980, 143368), (1120, 125447), (1568, 89605), (1960, 71684), (3920, 35842), (7840, 17921)]