74383780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 159390000

約数和(自身を除く): 85006220

約数列:

[1, 2, 4, 5, 10, 20, 109, 149, 218, 229, 298, 436, 458, 545, 596, 745, 916, 1090, 1145, 1490, 2180, 2290, 2980, 4580, 16241, 24961, 32482, 34121, 49922, 64964, 68242, 81205, 99844, 124805, 136484, 162410, 170605, 249610, 324820, 341210, 499220, 682420, 3719189, 7438378, 14876756, 18595945, 37191890, 74383780]

約数ペア:

[(1, 74383780), (2, 37191890), (4, 18595945), (5, 14876756), (10, 7438378), (20, 3719189), (109, 682420), (149, 499220), (218, 341210), (229, 324820), (298, 249610), (436, 170605), (458, 162410), (545, 136484), (596, 124805), (745, 99844), (916, 81205), (1090, 68242), (1145, 64964), (1490, 49922), (2180, 34121), (2290, 32482), (2980, 24961), (4580, 16241)]