405496620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31729}}^1$

素因数の和:31815

約数の個数: 72

約数和(自身を含む): 1247369760

約数和(自身を除く): 841873140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 31729, 63458, 95187, 126916, 158645, 190374, 285561, 317290, 380748, 475935, 571122, 634580, 951870, 1142244, 1427805, 1903740, 2252759, 2855610, 4505518, 5711220, 6758277, 9011036, 11263795, 13516554, 20274831, 22527590, 27033108, 33791385, 40549662, 45055180, 67582770, 81099324, 101374155, 135165540, 202748310, 405496620]

約数ペア:

[(1, 405496620), (2, 202748310), (3, 135165540), (4, 101374155), (5, 81099324), (6, 67582770), (9, 45055180), (10, 40549662), (12, 33791385), (15, 27033108), (18, 22527590), (20, 20274831), (30, 13516554), (36, 11263795), (45, 9011036), (60, 6758277), (71, 5711220), (90, 4505518), (142, 2855610), (180, 2252759), (213, 1903740), (284, 1427805), (355, 1142244), (426, 951870), (639, 634580), (710, 571122), (852, 475935), (1065, 380748), (1278, 317290), (1420, 285561), (2130, 190374), (2556, 158645), (3195, 126916), (4260, 95187), (6390, 63458), (12780, 31729)]