215979260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{3019}}^1$

素因数の和:3115

約数の個数: 72

約数和(自身を含む): 535011120

約数和(自身を除く): 319031860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 730, 980, 1022, 1460, 2044, 2555, 3019, 3577, 5110, 6038, 7154, 10220, 12076, 14308, 15095, 17885, 21133, 30190, 35770, 42266, 60380, 71540, 84532, 105665, 147931, 211330, 220387, 295862, 422660, 440774, 591724, 739655, 881548, 1101935, 1479310, 1542709, 2203870, 2958620, 3085418, 4407740, 6170836, 7713545, 10798963, 15427090, 21597926, 30854180, 43195852, 53994815, 107989630, 215979260]

約数ペア:

[(1, 215979260), (2, 107989630), (4, 53994815), (5, 43195852), (7, 30854180), (10, 21597926), (14, 15427090), (20, 10798963), (28, 7713545), (35, 6170836), (49, 4407740), (70, 3085418), (73, 2958620), (98, 2203870), (140, 1542709), (146, 1479310), (196, 1101935), (245, 881548), (292, 739655), (365, 591724), (490, 440774), (511, 422660), (730, 295862), (980, 220387), (1022, 211330), (1460, 147931), (2044, 105665), (2555, 84532), (3019, 71540), (3577, 60380), (5110, 42266), (6038, 35770), (7154, 30190), (10220, 21133), (12076, 17885), (14308, 15095)]