121881520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{37159}}^1$

素因数の和:37213

約数の個数: 40

約数和(自身を含む): 290293920

約数和(自身を除く): 168412400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 37159, 74318, 148636, 185795, 297272, 371590, 594544, 743180, 1486360, 1523519, 2972720, 3047038, 6094076, 7617595, 12188152, 15235190, 24376304, 30470380, 60940760, 121881520]

約数ペア:

[(1, 121881520), (2, 60940760), (4, 30470380), (5, 24376304), (8, 15235190), (10, 12188152), (16, 7617595), (20, 6094076), (40, 3047038), (41, 2972720), (80, 1523519), (82, 1486360), (164, 743180), (205, 594544), (328, 371590), (410, 297272), (656, 185795), (820, 148636), (1640, 74318), (3280, 37159)]