61389540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1427}}^1$

素因数の和:1681

約数の個数: 72

約数和(自身を含む): 187125120

約数和(自身を除く): 125735580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1427, 1434, 2151, 2390, 2854, 2868, 3585, 4281, 4302, 4780, 5708, 7135, 7170, 8562, 8604, 10755, 12843, 14270, 14340, 17124, 21405, 21510, 25686, 28540, 42810, 43020, 51372, 64215, 85620, 128430, 256860, 341053, 682106, 1023159, 1364212, 1705265, 2046318, 3069477, 3410530, 4092636, 5115795, 6138954, 6821060, 10231590, 12277908, 15347385, 20463180, 30694770, 61389540]

約数ペア:

[(1, 61389540), (2, 30694770), (3, 20463180), (4, 15347385), (5, 12277908), (6, 10231590), (9, 6821060), (10, 6138954), (12, 5115795), (15, 4092636), (18, 3410530), (20, 3069477), (30, 2046318), (36, 1705265), (45, 1364212), (60, 1023159), (90, 682106), (180, 341053), (239, 256860), (478, 128430), (717, 85620), (956, 64215), (1195, 51372), (1427, 43020), (1434, 42810), (2151, 28540), (2390, 25686), (2854, 21510), (2868, 21405), (3585, 17124), (4281, 14340), (4302, 14270), (4780, 12843), (5708, 10755), (7135, 8604), (7170, 8562)]