1268352920

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{49009}}^1$

素因数の和:49667

約数の個数: 32

約数和(自身を含む): 2858263200

約数和(自身を除く): 1589910280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 3235, 5176, 6470, 12940, 25880, 49009, 98018, 196036, 245045, 392072, 490090, 980180, 1960360, 31708823, 63417646, 126835292, 158544115, 253670584, 317088230, 634176460, 1268352920]

約数ペア:

[(1, 1268352920), (2, 634176460), (4, 317088230), (5, 253670584), (8, 158544115), (10, 126835292), (20, 63417646), (40, 31708823), (647, 1960360), (1294, 980180), (2588, 490090), (3235, 392072), (5176, 245045), (6470, 196036), (12940, 98018), (25880, 49009)]