25289480

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 59097600

約数和(自身を除く): 33808120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 151, 158, 212, 265, 302, 316, 395, 424, 530, 604, 632, 755, 790, 1060, 1208, 1510, 1580, 2120, 3020, 3160, 4187, 6040, 8003, 8374, 11929, 16006, 16748, 20935, 23858, 32012, 33496, 40015, 41870, 47716, 59645, 64024, 80030, 83740, 95432, 119290, 160060, 167480, 238580, 320120, 477160, 632237, 1264474, 2528948, 3161185, 5057896, 6322370, 12644740, 25289480]

約数ペア:

[(1, 25289480), (2, 12644740), (4, 6322370), (5, 5057896), (8, 3161185), (10, 2528948), (20, 1264474), (40, 632237), (53, 477160), (79, 320120), (106, 238580), (151, 167480), (158, 160060), (212, 119290), (265, 95432), (302, 83740), (316, 80030), (395, 64024), (424, 59645), (530, 47716), (604, 41870), (632, 40015), (755, 33496), (790, 32012), (1060, 23858), (1208, 20935), (1510, 16748), (1580, 16006), (2120, 11929), (3020, 8374), (3160, 8003), (4187, 6040)]