12981420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1759}}^1$

素因数の和:1815

約数の個数: 72

約数和(自身を含む): 40360320

約数和(自身を除く): 27378900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1759, 1845, 2460, 3518, 3690, 5277, 7036, 7380, 8795, 10554, 15831, 17590, 21108, 26385, 31662, 35180, 52770, 63324, 72119, 79155, 105540, 144238, 158310, 216357, 288476, 316620, 360595, 432714, 649071, 721190, 865428, 1081785, 1298142, 1442380, 2163570, 2596284, 3245355, 4327140, 6490710, 12981420]

約数ペア:

[(1, 12981420), (2, 6490710), (3, 4327140), (4, 3245355), (5, 2596284), (6, 2163570), (9, 1442380), (10, 1298142), (12, 1081785), (15, 865428), (18, 721190), (20, 649071), (30, 432714), (36, 360595), (41, 316620), (45, 288476), (60, 216357), (82, 158310), (90, 144238), (123, 105540), (164, 79155), (180, 72119), (205, 63324), (246, 52770), (369, 35180), (410, 31662), (492, 26385), (615, 21108), (738, 17590), (820, 15831), (1230, 10554), (1476, 8795), (1759, 7380), (1845, 7036), (2460, 5277), (3518, 3690)]