681005900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{166099}}^1$

素因数の和:166154

約数の個数: 36

約数和(自身を含む): 1513835400

約数和(自身を除く): 832829500

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 166099, 332198, 664396, 830495, 1660990, 3321980, 4152475, 6810059, 8304950, 13620118, 16609900, 27240236, 34050295, 68100590, 136201180, 170251475, 340502950, 681005900]

約数ペア:

[(1, 681005900), (2, 340502950), (4, 170251475), (5, 136201180), (10, 68100590), (20, 34050295), (25, 27240236), (41, 16609900), (50, 13620118), (82, 8304950), (100, 6810059), (164, 4152475), (205, 3321980), (410, 1660990), (820, 830495), (1025, 664396), (2050, 332198), (4100, 166099)]