19874530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^2$

素因数の和:100

約数の個数: 72

約数和(自身を含む): 42782292

約数和(自身を除く): 22907762

約数列:

[1, 2, 5, 10, 13, 17, 23, 26, 34, 46, 65, 85, 115, 130, 170, 221, 230, 289, 299, 391, 442, 529, 578, 598, 782, 1058, 1105, 1445, 1495, 1955, 2210, 2645, 2890, 2990, 3757, 3910, 5083, 5290, 6647, 6877, 7514, 8993, 10166, 13294, 13754, 17986, 18785, 25415, 33235, 34385, 37570, 44965, 50830, 66470, 68770, 86411, 89930, 116909, 152881, 172822, 233818, 305762, 432055, 584545, 764405, 864110, 1169090, 1528810, 1987453, 3974906, 9937265, 19874530]

約数ペア:

[(1, 19874530), (2, 9937265), (5, 3974906), (10, 1987453), (13, 1528810), (17, 1169090), (23, 864110), (26, 764405), (34, 584545), (46, 432055), (65, 305762), (85, 233818), (115, 172822), (130, 152881), (170, 116909), (221, 89930), (230, 86411), (289, 68770), (299, 66470), (391, 50830), (442, 44965), (529, 37570), (578, 34385), (598, 33235), (782, 25415), (1058, 18785), (1105, 17986), (1445, 13754), (1495, 13294), (1955, 10166), (2210, 8993), (2645, 7514), (2890, 6877), (2990, 6647), (3757, 5290), (3910, 5083)]