81840060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1481}}^1$

素因数の和:1803

約数の個数: 72

約数和(自身を含む): 249224976

約数和(自身を除く): 167384916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 307, 614, 921, 1228, 1481, 1535, 1842, 2763, 2962, 3070, 3684, 4443, 4605, 5526, 5924, 6140, 7405, 8886, 9210, 11052, 13329, 13815, 14810, 17772, 18420, 22215, 26658, 27630, 29620, 44430, 53316, 55260, 66645, 88860, 133290, 266580, 454667, 909334, 1364001, 1818668, 2273335, 2728002, 4092003, 4546670, 5456004, 6820005, 8184006, 9093340, 13640010, 16368012, 20460015, 27280020, 40920030, 81840060]

約数ペア:

[(1, 81840060), (2, 40920030), (3, 27280020), (4, 20460015), (5, 16368012), (6, 13640010), (9, 9093340), (10, 8184006), (12, 6820005), (15, 5456004), (18, 4546670), (20, 4092003), (30, 2728002), (36, 2273335), (45, 1818668), (60, 1364001), (90, 909334), (180, 454667), (307, 266580), (614, 133290), (921, 88860), (1228, 66645), (1481, 55260), (1535, 53316), (1842, 44430), (2763, 29620), (2962, 27630), (3070, 26658), (3684, 22215), (4443, 18420), (4605, 17772), (5526, 14810), (5924, 13815), (6140, 13329), (7405, 11052), (8886, 9210)]