220649920

素因数分解:

$2^6\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2683}}^1$

素因数の和:2957

約数の個数: 56

約数和(自身を含む): 527663664

約数和(自身を除く): 307013744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 257, 320, 514, 1028, 1285, 2056, 2570, 2683, 4112, 5140, 5366, 8224, 10280, 10732, 13415, 16448, 20560, 21464, 26830, 41120, 42928, 53660, 82240, 85856, 107320, 171712, 214640, 429280, 689531, 858560, 1379062, 2758124, 3447655, 5516248, 6895310, 11032496, 13790620, 22064992, 27581240, 44129984, 55162480, 110324960, 220649920]

約数ペア:

[(1, 220649920), (2, 110324960), (4, 55162480), (5, 44129984), (8, 27581240), (10, 22064992), (16, 13790620), (20, 11032496), (32, 6895310), (40, 5516248), (64, 3447655), (80, 2758124), (160, 1379062), (257, 858560), (320, 689531), (514, 429280), (1028, 214640), (1285, 171712), (2056, 107320), (2570, 85856), (2683, 82240), (4112, 53660), (5140, 42928), (5366, 41120), (8224, 26830), (10280, 21464), (10732, 20560), (13415, 16448)]