31117600

素因数分解:

$2^5\times 5^2\times {\mathrm{97}}^1\times {\mathrm{401}}^1$

素因数の和:518

約数の個数: 72

約数和(自身を含む): 76940388

約数和(自身を除く): 45822788

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 97, 100, 160, 194, 200, 388, 400, 401, 485, 776, 800, 802, 970, 1552, 1604, 1940, 2005, 2425, 3104, 3208, 3880, 4010, 4850, 6416, 7760, 8020, 9700, 10025, 12832, 15520, 16040, 19400, 20050, 32080, 38800, 38897, 40100, 64160, 77600, 77794, 80200, 155588, 160400, 194485, 311176, 320800, 388970, 622352, 777940, 972425, 1244704, 1555880, 1944850, 3111760, 3889700, 6223520, 7779400, 15558800, 31117600]

約数ペア:

[(1, 31117600), (2, 15558800), (4, 7779400), (5, 6223520), (8, 3889700), (10, 3111760), (16, 1944850), (20, 1555880), (25, 1244704), (32, 972425), (40, 777940), (50, 622352), (80, 388970), (97, 320800), (100, 311176), (160, 194485), (194, 160400), (200, 155588), (388, 80200), (400, 77794), (401, 77600), (485, 64160), (776, 40100), (800, 38897), (802, 38800), (970, 32080), (1552, 20050), (1604, 19400), (1940, 16040), (2005, 15520), (2425, 12832), (3104, 10025), (3208, 9700), (3880, 8020), (4010, 7760), (4850, 6416)]