77077980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^2\times {\mathrm{971}}^1$

素因数の和:1006

約数の個数: 180

約数和(自身を含む): 281563128

約数和(自身を除く): 204485148

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 245, 252, 270, 294, 315, 324, 378, 405, 420, 441, 490, 540, 567, 588, 630, 735, 756, 810, 882, 945, 971, 980, 1134, 1260, 1323, 1470, 1620, 1764, 1890, 1942, 2205, 2268, 2646, 2835, 2913, 2940, 3780, 3884, 3969, 4410, 4855, 5292, 5670, 5826, 6615, 6797, 7938, 8739, 8820, 9710, 11340, 11652, 13230, 13594, 14565, 15876, 17478, 19420, 19845, 20391, 26217, 26460, 27188, 29130, 33985, 34956, 39690, 40782, 43695, 47579, 52434, 58260, 61173, 67970, 78651, 79380, 81564, 87390, 95158, 101955, 104868, 122346, 131085, 135940, 142737, 157302, 174780, 183519, 190316, 203910, 237895, 244692, 262170, 285474, 305865, 314604, 367038, 393255, 407820, 428211, 475790, 524340, 550557, 570948, 611730, 713685, 734076, 786510, 856422, 917595, 951580, 1101114, 1223460, 1284633, 1427370, 1573020, 1712844, 1835190, 2141055, 2202228, 2569266, 2752785, 2854740, 3670380, 3853899, 4282110, 5138532, 5505570, 6423165, 7707798, 8564220, 11011140, 12846330, 15415596, 19269495, 25692660, 38538990, 77077980]

約数ペア:

[(1, 77077980), (2, 38538990), (3, 25692660), (4, 19269495), (5, 15415596), (6, 12846330), (7, 11011140), (9, 8564220), (10, 7707798), (12, 6423165), (14, 5505570), (15, 5138532), (18, 4282110), (20, 3853899), (21, 3670380), (27, 2854740), (28, 2752785), (30, 2569266), (35, 2202228), (36, 2141055), (42, 1835190), (45, 1712844), (49, 1573020), (54, 1427370), (60, 1284633), (63, 1223460), (70, 1101114), (81, 951580), (84, 917595), (90, 856422), (98, 786510), (105, 734076), (108, 713685), (126, 611730), (135, 570948), (140, 550557), (147, 524340), (162, 475790), (180, 428211), (189, 407820), (196, 393255), (210, 367038), (245, 314604), (252, 305865), (270, 285474), (294, 262170), (315, 244692), (324, 237895), (378, 203910), (405, 190316), (420, 183519), (441, 174780), (490, 157302), (540, 142737), (567, 135940), (588, 131085), (630, 122346), (735, 104868), (756, 101955), (810, 95158), (882, 87390), (945, 81564), (971, 79380), (980, 78651), (1134, 67970), (1260, 61173), (1323, 58260), (1470, 52434), (1620, 47579), (1764, 43695), (1890, 40782), (1942, 39690), (2205, 34956), (2268, 33985), (2646, 29130), (2835, 27188), (2913, 26460), (2940, 26217), (3780, 20391), (3884, 19845), (3969, 19420), (4410, 17478), (4855, 15876), (5292, 14565), (5670, 13594), (5826, 13230), (6615, 11652), (6797, 11340), (7938, 9710), (8739, 8820)]