15502540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 33685344

約数和(自身を除く): 18182804

約数列:

[1, 2, 4, 5, 10, 20, 61, 97, 122, 131, 194, 244, 262, 305, 388, 485, 524, 610, 655, 970, 1220, 1310, 1940, 2620, 5917, 7991, 11834, 12707, 15982, 23668, 25414, 29585, 31964, 39955, 50828, 59170, 63535, 79910, 118340, 127070, 159820, 254140, 775127, 1550254, 3100508, 3875635, 7751270, 15502540]

約数ペア:

[(1, 15502540), (2, 7751270), (4, 3875635), (5, 3100508), (10, 1550254), (20, 775127), (61, 254140), (97, 159820), (122, 127070), (131, 118340), (194, 79910), (244, 63535), (262, 59170), (305, 50828), (388, 39955), (485, 31964), (524, 29585), (610, 25414), (655, 23668), (970, 15982), (1220, 12707), (1310, 11834), (1940, 7991), (2620, 5917)]