2154980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 4898880

約数和(自身を除く): 2743900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 107, 190, 212, 214, 265, 380, 428, 530, 535, 1007, 1060, 1070, 2014, 2033, 2140, 4028, 4066, 5035, 5671, 8132, 10070, 10165, 11342, 20140, 20330, 22684, 28355, 40660, 56710, 107749, 113420, 215498, 430996, 538745, 1077490, 2154980]

約数ペア:

[(1, 2154980), (2, 1077490), (4, 538745), (5, 430996), (10, 215498), (19, 113420), (20, 107749), (38, 56710), (53, 40660), (76, 28355), (95, 22684), (106, 20330), (107, 20140), (190, 11342), (212, 10165), (214, 10070), (265, 8132), (380, 5671), (428, 5035), (530, 4066), (535, 4028), (1007, 2140), (1060, 2033), (1070, 2014)]