80620020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:422

約数の個数: 144

約数和(自身を含む): 266378112

約数和(自身を除く): 185758092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 131, 156, 180, 195, 234, 260, 262, 263, 390, 393, 468, 524, 526, 585, 655, 780, 786, 789, 1052, 1170, 1179, 1310, 1315, 1572, 1578, 1703, 1965, 2340, 2358, 2367, 2620, 2630, 3156, 3406, 3419, 3930, 3945, 4716, 4734, 5109, 5260, 5895, 6812, 6838, 7860, 7890, 8515, 9468, 10218, 10257, 11790, 11835, 13676, 15327, 15780, 17030, 17095, 20436, 20514, 23580, 23670, 25545, 30654, 30771, 34060, 34190, 34453, 41028, 47340, 51090, 51285, 61308, 61542, 68380, 68906, 76635, 102180, 102570, 103359, 123084, 137812, 153270, 153855, 172265, 205140, 206718, 306540, 307710, 310077, 344530, 413436, 447889, 516795, 615420, 620154, 689060, 895778, 1033590, 1240308, 1343667, 1550385, 1791556, 2067180, 2239445, 2687334, 3100770, 4031001, 4478890, 5374668, 6201540, 6718335, 8062002, 8957780, 13436670, 16124004, 20155005, 26873340, 40310010, 80620020]

約数ペア:

[(1, 80620020), (2, 40310010), (3, 26873340), (4, 20155005), (5, 16124004), (6, 13436670), (9, 8957780), (10, 8062002), (12, 6718335), (13, 6201540), (15, 5374668), (18, 4478890), (20, 4031001), (26, 3100770), (30, 2687334), (36, 2239445), (39, 2067180), (45, 1791556), (52, 1550385), (60, 1343667), (65, 1240308), (78, 1033590), (90, 895778), (117, 689060), (130, 620154), (131, 615420), (156, 516795), (180, 447889), (195, 413436), (234, 344530), (260, 310077), (262, 307710), (263, 306540), (390, 206718), (393, 205140), (468, 172265), (524, 153855), (526, 153270), (585, 137812), (655, 123084), (780, 103359), (786, 102570), (789, 102180), (1052, 76635), (1170, 68906), (1179, 68380), (1310, 61542), (1315, 61308), (1572, 51285), (1578, 51090), (1703, 47340), (1965, 41028), (2340, 34453), (2358, 34190), (2367, 34060), (2620, 30771), (2630, 30654), (3156, 25545), (3406, 23670), (3419, 23580), (3930, 20514), (3945, 20436), (4716, 17095), (4734, 17030), (5109, 15780), (5260, 15327), (5895, 13676), (6812, 11835), (6838, 11790), (7860, 10257), (7890, 10218), (8515, 9468)]