61303780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 132335280

約数和(自身を除く): 71031500

約数列:

[1, 2, 4, 5, 10, 20, 61, 109, 122, 218, 244, 305, 436, 461, 545, 610, 922, 1090, 1220, 1844, 2180, 2305, 4610, 6649, 9220, 13298, 26596, 28121, 33245, 50249, 56242, 66490, 100498, 112484, 132980, 140605, 200996, 251245, 281210, 502490, 562420, 1004980, 3065189, 6130378, 12260756, 15325945, 30651890, 61303780]

約数ペア:

[(1, 61303780), (2, 30651890), (4, 15325945), (5, 12260756), (10, 6130378), (20, 3065189), (61, 1004980), (109, 562420), (122, 502490), (218, 281210), (244, 251245), (305, 200996), (436, 140605), (461, 132980), (545, 112484), (610, 100498), (922, 66490), (1090, 56242), (1220, 50249), (1844, 33245), (2180, 28121), (2305, 26596), (4610, 13298), (6649, 9220)]