81820550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1489}}^1$

素因数の和:1665

約数の個数: 48

約数和(自身を含む): 175152480

約数和(自身を除く): 93331930

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 157, 175, 314, 350, 785, 1099, 1489, 1570, 2198, 2978, 3925, 5495, 7445, 7850, 10423, 10990, 14890, 20846, 27475, 37225, 52115, 54950, 74450, 104230, 233773, 260575, 467546, 521150, 1168865, 1636411, 2337730, 3272822, 5844325, 8182055, 11688650, 16364110, 40910275, 81820550]

約数ペア:

[(1, 81820550), (2, 40910275), (5, 16364110), (7, 11688650), (10, 8182055), (14, 5844325), (25, 3272822), (35, 2337730), (50, 1636411), (70, 1168865), (157, 521150), (175, 467546), (314, 260575), (350, 233773), (785, 104230), (1099, 74450), (1489, 54950), (1570, 52115), (2198, 37225), (2978, 27475), (3925, 20846), (5495, 14890), (7445, 10990), (7850, 10423)]