19571220

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4027}}^1$

素因数の和:4051

約数の個数: 72

約数和(自身を含む): 61580064

約数和(自身を除く): 42008844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4027, 4860, 8054, 12081, 16108, 20135, 24162, 36243, 40270, 48324, 60405, 72486, 80540, 108729, 120810, 144972, 181215, 217458, 241620, 326187, 362430, 434916, 543645, 652374, 724860, 978561, 1087290, 1304748, 1630935, 1957122, 2174580, 3261870, 3914244, 4892805, 6523740, 9785610, 19571220]

約数ペア:

[(1, 19571220), (2, 9785610), (3, 6523740), (4, 4892805), (5, 3914244), (6, 3261870), (9, 2174580), (10, 1957122), (12, 1630935), (15, 1304748), (18, 1087290), (20, 978561), (27, 724860), (30, 652374), (36, 543645), (45, 434916), (54, 362430), (60, 326187), (81, 241620), (90, 217458), (108, 181215), (135, 144972), (162, 120810), (180, 108729), (243, 80540), (270, 72486), (324, 60405), (405, 48324), (486, 40270), (540, 36243), (810, 24162), (972, 20135), (1215, 16108), (1620, 12081), (2430, 8054), (4027, 4860)]