289451390

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^2\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 48

約数和(自身を含む): 544109616

約数和(自身を除く): 254658226

約数列:

[1, 2, 5, 10, 41, 67, 82, 134, 205, 257, 335, 410, 514, 670, 1285, 1681, 2570, 2747, 3362, 5494, 8405, 10537, 13735, 16810, 17219, 21074, 27470, 34438, 52685, 86095, 105370, 112627, 172190, 225254, 432017, 563135, 705979, 864034, 1126270, 1411958, 2160085, 3529895, 4320170, 7059790, 28945139, 57890278, 144725695, 289451390]

約数ペア:

[(1, 289451390), (2, 144725695), (5, 57890278), (10, 28945139), (41, 7059790), (67, 4320170), (82, 3529895), (134, 2160085), (205, 1411958), (257, 1126270), (335, 864034), (410, 705979), (514, 563135), (670, 432017), (1285, 225254), (1681, 172190), (2570, 112627), (2747, 105370), (3362, 86095), (5494, 52685), (8405, 34438), (10537, 27470), (13735, 21074), (16810, 17219)]