90400250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 180329760

約数和(自身を除く): 89929510

約数列:

[1, 2, 5, 10, 25, 29, 37, 50, 58, 74, 125, 145, 185, 250, 290, 337, 370, 674, 725, 925, 1073, 1450, 1685, 1850, 2146, 3370, 3625, 4625, 5365, 7250, 8425, 9250, 9773, 10730, 12469, 16850, 19546, 24938, 26825, 42125, 48865, 53650, 62345, 84250, 97730, 124690, 134125, 244325, 268250, 311725, 361601, 488650, 623450, 723202, 1221625, 1558625, 1808005, 2443250, 3117250, 3616010, 9040025, 18080050, 45200125, 90400250]

約数ペア:

[(1, 90400250), (2, 45200125), (5, 18080050), (10, 9040025), (25, 3616010), (29, 3117250), (37, 2443250), (50, 1808005), (58, 1558625), (74, 1221625), (125, 723202), (145, 623450), (185, 488650), (250, 361601), (290, 311725), (337, 268250), (370, 244325), (674, 134125), (725, 124690), (925, 97730), (1073, 84250), (1450, 62345), (1685, 53650), (1850, 48865), (2146, 42125), (3370, 26825), (3625, 24938), (4625, 19546), (5365, 16850), (7250, 12469), (8425, 10730), (9250, 9773)]