18703540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 22390604

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 97, 124, 155, 194, 310, 311, 388, 485, 620, 622, 970, 1244, 1555, 1940, 3007, 3110, 6014, 6220, 9641, 12028, 15035, 19282, 30070, 30167, 38564, 48205, 60140, 60334, 96410, 120668, 150835, 192820, 301670, 603340, 935177, 1870354, 3740708, 4675885, 9351770, 18703540]

約数ペア:

[(1, 18703540), (2, 9351770), (4, 4675885), (5, 3740708), (10, 1870354), (20, 935177), (31, 603340), (62, 301670), (97, 192820), (124, 150835), (155, 120668), (194, 96410), (310, 60334), (311, 60140), (388, 48205), (485, 38564), (620, 30167), (622, 30070), (970, 19282), (1244, 15035), (1555, 12028), (1940, 9641), (3007, 6220), (3110, 6014)]