820317780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{919}}^1$

素因数の和:988

約数の個数: 240

約数和(自身を含む): 2805264000

約数和(自身を除く): 1984946220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 29, 30, 36, 38, 45, 54, 57, 58, 60, 76, 81, 87, 90, 95, 108, 114, 116, 135, 145, 162, 171, 174, 180, 190, 228, 261, 270, 285, 290, 324, 342, 348, 380, 405, 435, 513, 522, 540, 551, 570, 580, 684, 783, 810, 855, 870, 919, 1026, 1044, 1102, 1140, 1305, 1539, 1566, 1620, 1653, 1710, 1740, 1838, 2052, 2204, 2349, 2565, 2610, 2755, 2757, 3078, 3132, 3306, 3420, 3676, 3915, 4595, 4698, 4959, 5130, 5220, 5510, 5514, 6156, 6612, 7695, 7830, 8265, 8271, 9190, 9396, 9918, 10260, 11020, 11028, 11745, 13785, 14877, 15390, 15660, 16530, 16542, 17461, 18380, 19836, 23490, 24795, 24813, 26651, 27570, 29754, 30780, 33060, 33084, 34922, 41355, 44631, 46980, 49590, 49626, 52383, 53302, 55140, 59508, 69844, 74385, 74439, 79953, 82710, 87305, 89262, 99180, 99252, 104766, 106604, 124065, 133255, 148770, 148878, 157149, 159906, 165420, 174610, 178524, 209532, 223155, 239859, 248130, 261915, 266510, 297540, 297756, 314298, 319812, 349220, 372195, 399765, 446310, 471447, 479718, 496260, 506369, 523830, 533020, 628596, 719577, 744390, 785745, 799530, 892620, 942894, 959436, 1012738, 1047660, 1199295, 1414341, 1439154, 1488780, 1519107, 1571490, 1599060, 1885788, 2025476, 2158731, 2357235, 2398590, 2531845, 2828682, 2878308, 3038214, 3142980, 3597885, 4317462, 4557321, 4714470, 4797180, 5063690, 5657364, 6076428, 7071705, 7195770, 7595535, 8634924, 9114642, 9428940, 10127380, 10793655, 13671963, 14143410, 14391540, 15191070, 18229284, 21587310, 22786605, 27343926, 28286820, 30382140, 41015889, 43174620, 45573210, 54687852, 68359815, 82031778, 91146420, 136719630, 164063556, 205079445, 273439260, 410158890, 820317780]

約数ペア:

[(1, 820317780), (2, 410158890), (3, 273439260), (4, 205079445), (5, 164063556), (6, 136719630), (9, 91146420), (10, 82031778), (12, 68359815), (15, 54687852), (18, 45573210), (19, 43174620), (20, 41015889), (27, 30382140), (29, 28286820), (30, 27343926), (36, 22786605), (38, 21587310), (45, 18229284), (54, 15191070), (57, 14391540), (58, 14143410), (60, 13671963), (76, 10793655), (81, 10127380), (87, 9428940), (90, 9114642), (95, 8634924), (108, 7595535), (114, 7195770), (116, 7071705), (135, 6076428), (145, 5657364), (162, 5063690), (171, 4797180), (174, 4714470), (180, 4557321), (190, 4317462), (228, 3597885), (261, 3142980), (270, 3038214), (285, 2878308), (290, 2828682), (324, 2531845), (342, 2398590), (348, 2357235), (380, 2158731), (405, 2025476), (435, 1885788), (513, 1599060), (522, 1571490), (540, 1519107), (551, 1488780), (570, 1439154), (580, 1414341), (684, 1199295), (783, 1047660), (810, 1012738), (855, 959436), (870, 942894), (919, 892620), (1026, 799530), (1044, 785745), (1102, 744390), (1140, 719577), (1305, 628596), (1539, 533020), (1566, 523830), (1620, 506369), (1653, 496260), (1710, 479718), (1740, 471447), (1838, 446310), (2052, 399765), (2204, 372195), (2349, 349220), (2565, 319812), (2610, 314298), (2755, 297756), (2757, 297540), (3078, 266510), (3132, 261915), (3306, 248130), (3420, 239859), (3676, 223155), (3915, 209532), (4595, 178524), (4698, 174610), (4959, 165420), (5130, 159906), (5220, 157149), (5510, 148878), (5514, 148770), (6156, 133255), (6612, 124065), (7695, 106604), (7830, 104766), (8265, 99252), (8271, 99180), (9190, 89262), (9396, 87305), (9918, 82710), (10260, 79953), (11020, 74439), (11028, 74385), (11745, 69844), (13785, 59508), (14877, 55140), (15390, 53302), (15660, 52383), (16530, 49626), (16542, 49590), (17461, 46980), (18380, 44631), (19836, 41355), (23490, 34922), (24795, 33084), (24813, 33060), (26651, 30780), (27570, 29754)]