309465860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^2$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 728251776

約数和(自身を除く): 418785916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 173, 188, 220, 235, 346, 470, 517, 692, 865, 940, 1034, 1730, 1903, 2068, 2585, 3460, 3806, 5170, 7612, 8131, 9515, 10340, 16262, 19030, 29929, 32524, 38060, 40655, 59858, 81310, 89441, 119716, 149645, 162620, 178882, 299290, 329219, 357764, 447205, 598580, 658438, 894410, 1316876, 1406663, 1646095, 1788820, 2813326, 3292190, 5626652, 6584380, 7033315, 14066630, 15473293, 28133260, 30946586, 61893172, 77366465, 154732930, 309465860]

約数ペア:

[(1, 309465860), (2, 154732930), (4, 77366465), (5, 61893172), (10, 30946586), (11, 28133260), (20, 15473293), (22, 14066630), (44, 7033315), (47, 6584380), (55, 5626652), (94, 3292190), (110, 2813326), (173, 1788820), (188, 1646095), (220, 1406663), (235, 1316876), (346, 894410), (470, 658438), (517, 598580), (692, 447205), (865, 357764), (940, 329219), (1034, 299290), (1730, 178882), (1903, 162620), (2068, 149645), (2585, 119716), (3460, 89441), (3806, 81310), (5170, 59858), (7612, 40655), (8131, 38060), (9515, 32524), (10340, 29929), (16262, 19030)]