65663750

素因数分解:

$2^1\times 5^4\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:554

約数の個数: 40

約数和(自身を含む): 124328952

約数和(自身を除く): 58665202

約数列:

[1, 2, 5, 10, 25, 50, 125, 131, 250, 262, 401, 625, 655, 802, 1250, 1310, 2005, 3275, 4010, 6550, 10025, 16375, 20050, 32750, 50125, 52531, 81875, 100250, 105062, 163750, 250625, 262655, 501250, 525310, 1313275, 2626550, 6566375, 13132750, 32831875, 65663750]

約数ペア:

[(1, 65663750), (2, 32831875), (5, 13132750), (10, 6566375), (25, 2626550), (50, 1313275), (125, 525310), (131, 501250), (250, 262655), (262, 250625), (401, 163750), (625, 105062), (655, 100250), (802, 81875), (1250, 52531), (1310, 50125), (2005, 32750), (3275, 20050), (4010, 16375), (6550, 10025)]