81807388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2671}}^1$

素因数の和:2738

約数の個数: 48

約数和(自身を含む): 167587840

約数和(自身を除く): 85780452

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 806, 988, 1178, 1612, 2356, 2671, 5342, 7657, 10684, 15314, 30628, 34723, 50749, 69446, 82801, 101498, 138892, 165602, 202996, 331204, 659737, 1076413, 1319474, 1573219, 2152826, 2638948, 3146438, 4305652, 6292876, 20451847, 40903694, 81807388]

約数ペア:

[(1, 81807388), (2, 40903694), (4, 20451847), (13, 6292876), (19, 4305652), (26, 3146438), (31, 2638948), (38, 2152826), (52, 1573219), (62, 1319474), (76, 1076413), (124, 659737), (247, 331204), (403, 202996), (494, 165602), (589, 138892), (806, 101498), (988, 82801), (1178, 69446), (1612, 50749), (2356, 34723), (2671, 30628), (5342, 15314), (7657, 10684)]