31356220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2309}}^1$

素因数の和:2422

約数の個数: 48

約数和(自身を含む): 76063680

約数和(自身を除く): 44707460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2309, 2716, 3395, 4618, 6790, 9236, 11545, 13580, 16163, 23090, 32326, 46180, 64652, 80815, 161630, 223973, 323260, 447946, 895892, 1119865, 1567811, 2239730, 3135622, 4479460, 6271244, 7839055, 15678110, 31356220]

約数ペア:

[(1, 31356220), (2, 15678110), (4, 7839055), (5, 6271244), (7, 4479460), (10, 3135622), (14, 2239730), (20, 1567811), (28, 1119865), (35, 895892), (70, 447946), (97, 323260), (140, 223973), (194, 161630), (388, 80815), (485, 64652), (679, 46180), (970, 32326), (1358, 23090), (1940, 16163), (2309, 13580), (2716, 11545), (3395, 9236), (4618, 6790)]