201913520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61559}}^1$

素因数の和:61613

約数の個数: 40

約数和(自身を含む): 480906720

約数和(自身を除く): 278993200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 61559, 123118, 246236, 307795, 492472, 615590, 984944, 1231180, 2462360, 2523919, 4924720, 5047838, 10095676, 12619595, 20191352, 25239190, 40382704, 50478380, 100956760, 201913520]

約数ペア:

[(1, 201913520), (2, 100956760), (4, 50478380), (5, 40382704), (8, 25239190), (10, 20191352), (16, 12619595), (20, 10095676), (40, 5047838), (41, 4924720), (80, 2523919), (82, 2462360), (164, 1231180), (205, 984944), (328, 615590), (410, 492472), (656, 307795), (820, 246236), (1640, 123118), (3280, 61559)]