80533820

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 173577600

約数和(自身を除く): 93043780

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 139, 236, 278, 295, 491, 556, 590, 695, 982, 1180, 1390, 1964, 2455, 2780, 4910, 8201, 9820, 16402, 28969, 32804, 41005, 57938, 68249, 82010, 115876, 136498, 144845, 164020, 272996, 289690, 341245, 579380, 682490, 1364980, 4026691, 8053382, 16106764, 20133455, 40266910, 80533820]

約数ペア:

[(1, 80533820), (2, 40266910), (4, 20133455), (5, 16106764), (10, 8053382), (20, 4026691), (59, 1364980), (118, 682490), (139, 579380), (236, 341245), (278, 289690), (295, 272996), (491, 164020), (556, 144845), (590, 136498), (695, 115876), (982, 82010), (1180, 68249), (1390, 57938), (1964, 41005), (2455, 32804), (2780, 28969), (4910, 16402), (8201, 9820)]