20082880

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{647}}^1$

素因数の和:761

約数の個数: 56

約数和(自身を含む): 48390048

約数和(自身を除く): 28307168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 647, 776, 970, 1294, 1552, 1940, 2588, 3104, 3235, 3880, 5176, 6208, 6470, 7760, 10352, 12940, 15520, 20704, 25880, 31040, 41408, 51760, 62759, 103520, 125518, 207040, 251036, 313795, 502072, 627590, 1004144, 1255180, 2008288, 2510360, 4016576, 5020720, 10041440, 20082880]

約数ペア:

[(1, 20082880), (2, 10041440), (4, 5020720), (5, 4016576), (8, 2510360), (10, 2008288), (16, 1255180), (20, 1004144), (32, 627590), (40, 502072), (64, 313795), (80, 251036), (97, 207040), (160, 125518), (194, 103520), (320, 62759), (388, 51760), (485, 41408), (647, 31040), (776, 25880), (970, 20704), (1294, 15520), (1552, 12940), (1940, 10352), (2588, 7760), (3104, 6470), (3235, 6208), (3880, 5176)]