19867890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2557}}^1$

素因数の和:2611

約数の個数: 64

約数和(自身を含む): 55989504

約数和(自身を除く): 36121614

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, 2557, 2590, 3885, 5114, 7671, 7770, 12785, 15342, 17899, 25570, 35798, 38355, 53697, 76710, 89495, 94609, 107394, 178990, 189218, 268485, 283827, 473045, 536970, 567654, 662263, 946090, 1324526, 1419135, 1986789, 2838270, 3311315, 3973578, 6622630, 9933945, 19867890]

約数ペア:

[(1, 19867890), (2, 9933945), (3, 6622630), (5, 3973578), (6, 3311315), (7, 2838270), (10, 1986789), (14, 1419135), (15, 1324526), (21, 946090), (30, 662263), (35, 567654), (37, 536970), (42, 473045), (70, 283827), (74, 268485), (105, 189218), (111, 178990), (185, 107394), (210, 94609), (222, 89495), (259, 76710), (370, 53697), (518, 38355), (555, 35798), (777, 25570), (1110, 17899), (1295, 15342), (1554, 12785), (2557, 7770), (2590, 7671), (3885, 5114)]