18080180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 41214096

約数和(自身を除く): 23133916

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1297, 1394, 2594, 2788, 3485, 5188, 6485, 6970, 12970, 13940, 22049, 25940, 44098, 53177, 88196, 106354, 110245, 212708, 220490, 265885, 440980, 531770, 904009, 1063540, 1808018, 3616036, 4520045, 9040090, 18080180]

約数ペア:

[(1, 18080180), (2, 9040090), (4, 4520045), (5, 3616036), (10, 1808018), (17, 1063540), (20, 904009), (34, 531770), (41, 440980), (68, 265885), (82, 220490), (85, 212708), (164, 110245), (170, 106354), (205, 88196), (340, 53177), (410, 44098), (697, 25940), (820, 22049), (1297, 13940), (1394, 12970), (2594, 6970), (2788, 6485), (3485, 5188)]