20152080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2153}}^1$

素因数の和:2185

約数の個数: 120

約数和(自身を含む): 72917208

約数和(自身を除く): 52765128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2153, 2340, 3120, 4306, 4680, 6459, 8612, 9360, 10765, 12918, 17224, 19377, 21530, 25836, 27989, 32295, 34448, 38754, 43060, 51672, 55978, 64590, 77508, 83967, 86120, 96885, 103344, 111956, 129180, 139945, 155016, 167934, 172240, 193770, 223912, 251901, 258360, 279890, 310032, 335868, 387540, 419835, 447824, 503802, 516720, 559780, 671736, 775080, 839670, 1007604, 1119560, 1259505, 1343472, 1550160, 1679340, 2015208, 2239120, 2519010, 3358680, 4030416, 5038020, 6717360, 10076040, 20152080]

約数ペア:

[(1, 20152080), (2, 10076040), (3, 6717360), (4, 5038020), (5, 4030416), (6, 3358680), (8, 2519010), (9, 2239120), (10, 2015208), (12, 1679340), (13, 1550160), (15, 1343472), (16, 1259505), (18, 1119560), (20, 1007604), (24, 839670), (26, 775080), (30, 671736), (36, 559780), (39, 516720), (40, 503802), (45, 447824), (48, 419835), (52, 387540), (60, 335868), (65, 310032), (72, 279890), (78, 258360), (80, 251901), (90, 223912), (104, 193770), (117, 172240), (120, 167934), (130, 155016), (144, 139945), (156, 129180), (180, 111956), (195, 103344), (208, 96885), (234, 86120), (240, 83967), (260, 77508), (312, 64590), (360, 55978), (390, 51672), (468, 43060), (520, 38754), (585, 34448), (624, 32295), (720, 27989), (780, 25836), (936, 21530), (1040, 19377), (1170, 17224), (1560, 12918), (1872, 10765), (2153, 9360), (2340, 8612), (3120, 6459), (4306, 4680)]