19665870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2531}}^1$

素因数の和:2585

約数の個数: 64

約数和(自身を含む): 55420416

約数和(自身を除く): 35754546

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 70, 74, 105, 111, 185, 210, 222, 259, 370, 518, 555, 777, 1110, 1295, 1554, 2531, 2590, 3885, 5062, 7593, 7770, 12655, 15186, 17717, 25310, 35434, 37965, 53151, 75930, 88585, 93647, 106302, 177170, 187294, 265755, 280941, 468235, 531510, 561882, 655529, 936470, 1311058, 1404705, 1966587, 2809410, 3277645, 3933174, 6555290, 9832935, 19665870]

約数ペア:

[(1, 19665870), (2, 9832935), (3, 6555290), (5, 3933174), (6, 3277645), (7, 2809410), (10, 1966587), (14, 1404705), (15, 1311058), (21, 936470), (30, 655529), (35, 561882), (37, 531510), (42, 468235), (70, 280941), (74, 265755), (105, 187294), (111, 177170), (185, 106302), (210, 93647), (222, 88585), (259, 75930), (370, 53151), (518, 37965), (555, 35434), (777, 25310), (1110, 17717), (1295, 15186), (1554, 12655), (2531, 7770), (2590, 7593), (3885, 5062)]