19871220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{8951}}^1$

素因数の和:9000

約数の個数: 48

約数和(自身を含む): 57149568

約数和(自身を除く): 37278348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 8951, 17902, 26853, 35804, 44755, 53706, 89510, 107412, 134265, 179020, 268530, 331187, 537060, 662374, 993561, 1324748, 1655935, 1987122, 3311870, 3974244, 4967805, 6623740, 9935610, 19871220]

約数ペア:

[(1, 19871220), (2, 9935610), (3, 6623740), (4, 4967805), (5, 3974244), (6, 3311870), (10, 1987122), (12, 1655935), (15, 1324748), (20, 993561), (30, 662374), (37, 537060), (60, 331187), (74, 268530), (111, 179020), (148, 134265), (185, 107412), (222, 89510), (370, 53706), (444, 44755), (555, 35804), (740, 26853), (1110, 17902), (2220, 8951)]