61898440

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{6421}}^1$

素因数の和:6673

約数の個数: 32

約数和(自身を含む): 139871160

約数和(自身を除く): 77972720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 6421, 9640, 12842, 25684, 32105, 51368, 64210, 128420, 256840, 1547461, 3094922, 6189844, 7737305, 12379688, 15474610, 30949220, 61898440]

約数ペア:

[(1, 61898440), (2, 30949220), (4, 15474610), (5, 12379688), (8, 7737305), (10, 6189844), (20, 3094922), (40, 1547461), (241, 256840), (482, 128420), (964, 64210), (1205, 51368), (1928, 32105), (2410, 25684), (4820, 12842), (6421, 9640)]