31081180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{691}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 70799904

約数和(自身を除く): 39718724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 173, 260, 346, 691, 692, 865, 1382, 1730, 2249, 2764, 3455, 3460, 4498, 6910, 8983, 8996, 11245, 13820, 17966, 22490, 35932, 44915, 44980, 89830, 119543, 179660, 239086, 478172, 597715, 1195430, 1554059, 2390860, 3108118, 6216236, 7770295, 15540590, 31081180]

約数ペア:

[(1, 31081180), (2, 15540590), (4, 7770295), (5, 6216236), (10, 3108118), (13, 2390860), (20, 1554059), (26, 1195430), (52, 597715), (65, 478172), (130, 239086), (173, 179660), (260, 119543), (346, 89830), (691, 44980), (692, 44915), (865, 35932), (1382, 22490), (1730, 17966), (2249, 13820), (2764, 11245), (3455, 8996), (3460, 8983), (4498, 6910)]