18471140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 40378800

約数和(自身を除く): 21907660

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 109, 148, 185, 218, 229, 370, 436, 458, 545, 740, 916, 1090, 1145, 2180, 2290, 4033, 4580, 8066, 8473, 16132, 16946, 20165, 24961, 33892, 40330, 42365, 49922, 80660, 84730, 99844, 124805, 169460, 249610, 499220, 923557, 1847114, 3694228, 4617785, 9235570, 18471140]

約数ペア:

[(1, 18471140), (2, 9235570), (4, 4617785), (5, 3694228), (10, 1847114), (20, 923557), (37, 499220), (74, 249610), (109, 169460), (148, 124805), (185, 99844), (218, 84730), (229, 80660), (370, 49922), (436, 42365), (458, 40330), (545, 33892), (740, 24961), (916, 20165), (1090, 16946), (1145, 16132), (2180, 8473), (2290, 8066), (4033, 4580)]