80228680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{40933}}^1$

素因数の和:40958

約数の個数: 48

約数和(自身を含む): 209991420

約数和(自身を除く): 129762740

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 40933, 81866, 163732, 204665, 286531, 327464, 409330, 573062, 818660, 1146124, 1432655, 1637320, 2005717, 2292248, 2865310, 4011434, 5730620, 8022868, 10028585, 11461240, 16045736, 20057170, 40114340, 80228680]

約数ペア:

[(1, 80228680), (2, 40114340), (4, 20057170), (5, 16045736), (7, 11461240), (8, 10028585), (10, 8022868), (14, 5730620), (20, 4011434), (28, 2865310), (35, 2292248), (40, 2005717), (49, 1637320), (56, 1432655), (70, 1146124), (98, 818660), (140, 573062), (196, 409330), (245, 327464), (280, 286531), (392, 204665), (490, 163732), (980, 81866), (1960, 40933)]