251290480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{448733}}^1$

素因数の和:448753

約数の個数: 40

約数和(自身を含む): 667716192

約数和(自身を除く): 416425712

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 448733, 897466, 1794932, 2243665, 3141131, 3589864, 4487330, 6282262, 7179728, 8974660, 12564524, 15705655, 17949320, 25129048, 31411310, 35898640, 50258096, 62822620, 125645240, 251290480]

約数ペア:

[(1, 251290480), (2, 125645240), (4, 62822620), (5, 50258096), (7, 35898640), (8, 31411310), (10, 25129048), (14, 17949320), (16, 15705655), (20, 12564524), (28, 8974660), (35, 7179728), (40, 6282262), (56, 4487330), (70, 3589864), (80, 3141131), (112, 2243665), (140, 1794932), (280, 897466), (560, 448733)]