26763980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 58254336

約数和(自身を除く): 31490356

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 127, 164, 205, 254, 257, 410, 508, 514, 635, 820, 1028, 1270, 1285, 2540, 2570, 5140, 5207, 10414, 10537, 20828, 21074, 26035, 32639, 42148, 52070, 52685, 65278, 104140, 105370, 130556, 163195, 210740, 326390, 652780, 1338199, 2676398, 5352796, 6690995, 13381990, 26763980]

約数ペア:

[(1, 26763980), (2, 13381990), (4, 6690995), (5, 5352796), (10, 2676398), (20, 1338199), (41, 652780), (82, 326390), (127, 210740), (164, 163195), (205, 130556), (254, 105370), (257, 104140), (410, 65278), (508, 52685), (514, 52070), (635, 42148), (820, 32639), (1028, 26035), (1270, 21074), (1285, 20828), (2540, 10537), (2570, 10414), (5140, 5207)]