81840240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37889}}^1$

素因数の和:37911

約数の個数: 80

約数和(自身を含む): 281901600

約数和(自身を除く): 200061360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 37889, 75778, 113667, 151556, 189445, 227334, 303112, 341001, 378890, 454668, 568335, 606224, 682002, 757780, 909336, 1023003, 1136670, 1364004, 1515560, 1705005, 1818672, 2046006, 2273340, 2728008, 3031120, 3410010, 4092012, 4546680, 5115015, 5456016, 6820020, 8184024, 9093360, 10230030, 13640040, 16368048, 20460060, 27280080, 40920120, 81840240]

約数ペア:

[(1, 81840240), (2, 40920120), (3, 27280080), (4, 20460060), (5, 16368048), (6, 13640040), (8, 10230030), (9, 9093360), (10, 8184024), (12, 6820020), (15, 5456016), (16, 5115015), (18, 4546680), (20, 4092012), (24, 3410010), (27, 3031120), (30, 2728008), (36, 2273340), (40, 2046006), (45, 1818672), (48, 1705005), (54, 1515560), (60, 1364004), (72, 1136670), (80, 1023003), (90, 909336), (108, 757780), (120, 682002), (135, 606224), (144, 568335), (180, 454668), (216, 378890), (240, 341001), (270, 303112), (360, 227334), (432, 189445), (540, 151556), (720, 113667), (1080, 75778), (2160, 37889)]