16889680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3461}}^1$

素因数の和:3535

約数の個数: 40

約数和(自身を含む): 39923784

約数和(自身を除く): 23034104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3461, 4880, 6922, 13844, 17305, 27688, 34610, 55376, 69220, 138440, 211121, 276880, 422242, 844484, 1055605, 1688968, 2111210, 3377936, 4222420, 8444840, 16889680]

約数ペア:

[(1, 16889680), (2, 8444840), (4, 4222420), (5, 3377936), (8, 2111210), (10, 1688968), (16, 1055605), (20, 844484), (40, 422242), (61, 276880), (80, 211121), (122, 138440), (244, 69220), (305, 55376), (488, 34610), (610, 27688), (976, 17305), (1220, 13844), (2440, 6922), (3461, 4880)]