28842500

素因数分解:

$2^2\times 5^4\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:246

約数の個数: 60

約数和(自身を含む): 64291920

約数和(自身を除く): 35449420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 83, 100, 125, 139, 166, 250, 278, 332, 415, 500, 556, 625, 695, 830, 1250, 1390, 1660, 2075, 2500, 2780, 3475, 4150, 6950, 8300, 10375, 11537, 13900, 17375, 20750, 23074, 34750, 41500, 46148, 51875, 57685, 69500, 86875, 103750, 115370, 173750, 207500, 230740, 288425, 347500, 576850, 1153700, 1442125, 2884250, 5768500, 7210625, 14421250, 28842500]

約数ペア:

[(1, 28842500), (2, 14421250), (4, 7210625), (5, 5768500), (10, 2884250), (20, 1442125), (25, 1153700), (50, 576850), (83, 347500), (100, 288425), (125, 230740), (139, 207500), (166, 173750), (250, 115370), (278, 103750), (332, 86875), (415, 69500), (500, 57685), (556, 51875), (625, 46148), (695, 41500), (830, 34750), (1250, 23074), (1390, 20750), (1660, 17375), (2075, 13900), (2500, 11537), (2780, 10375), (3475, 8300), (4150, 6950)]