2465740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 5531904

約数和(自身を除く): 3066164

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 97, 124, 155, 164, 194, 205, 310, 388, 410, 485, 620, 820, 970, 1271, 1940, 2542, 3007, 3977, 5084, 6014, 6355, 7954, 12028, 12710, 15035, 15908, 19885, 25420, 30070, 39770, 60140, 79540, 123287, 246574, 493148, 616435, 1232870, 2465740]

約数ペア:

[(1, 2465740), (2, 1232870), (4, 616435), (5, 493148), (10, 246574), (20, 123287), (31, 79540), (41, 60140), (62, 39770), (82, 30070), (97, 25420), (124, 19885), (155, 15908), (164, 15035), (194, 12710), (205, 12028), (310, 7954), (388, 6355), (410, 6014), (485, 5084), (620, 3977), (820, 3007), (970, 2542), (1271, 1940)]