78228400

素因数分解:

$2^4\times 5^2\times {\mathrm{223}}^1\times {\mathrm{877}}^1$

素因数の和:1118

約数の個数: 60

約数和(自身を含む): 189001792

約数和(自身を除く): 110773392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 223, 400, 446, 877, 892, 1115, 1754, 1784, 2230, 3508, 3568, 4385, 4460, 5575, 7016, 8770, 8920, 11150, 14032, 17540, 17840, 21925, 22300, 35080, 43850, 44600, 70160, 87700, 89200, 175400, 195571, 350800, 391142, 782284, 977855, 1564568, 1955710, 3129136, 3911420, 4889275, 7822840, 9778550, 15645680, 19557100, 39114200, 78228400]

約数ペア:

[(1, 78228400), (2, 39114200), (4, 19557100), (5, 15645680), (8, 9778550), (10, 7822840), (16, 4889275), (20, 3911420), (25, 3129136), (40, 1955710), (50, 1564568), (80, 977855), (100, 782284), (200, 391142), (223, 350800), (400, 195571), (446, 175400), (877, 89200), (892, 87700), (1115, 70160), (1754, 44600), (1784, 43850), (2230, 35080), (3508, 22300), (3568, 21925), (4385, 17840), (4460, 17540), (5575, 14032), (7016, 11150), (8770, 8920)]