20007540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 192

約数和(自身を含む): 73113600

約数和(自身を除く): 53106060

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, 54, 60, 63, 67, 70, 79, 84, 90, 105, 108, 126, 134, 135, 140, 158, 180, 189, 201, 210, 237, 252, 268, 270, 315, 316, 335, 378, 395, 402, 420, 469, 474, 540, 553, 603, 630, 670, 711, 756, 790, 804, 938, 945, 948, 1005, 1106, 1185, 1206, 1260, 1340, 1407, 1422, 1580, 1659, 1809, 1876, 1890, 2010, 2133, 2212, 2345, 2370, 2412, 2765, 2814, 2844, 3015, 3318, 3555, 3618, 3780, 4020, 4221, 4266, 4690, 4740, 4977, 5293, 5530, 5628, 6030, 6636, 7035, 7110, 7236, 8295, 8442, 8532, 9045, 9380, 9954, 10586, 10665, 11060, 12060, 12663, 14070, 14220, 14931, 15879, 16590, 16884, 18090, 19908, 21105, 21172, 21330, 24885, 25326, 26465, 28140, 29862, 31758, 33180, 36180, 37051, 42210, 42660, 47637, 49770, 50652, 52930, 59724, 63315, 63516, 74102, 74655, 79395, 84420, 95274, 99540, 105860, 111153, 126630, 142911, 148204, 149310, 158790, 185255, 190548, 222306, 238185, 253260, 285822, 298620, 317580, 333459, 370510, 444612, 476370, 555765, 571644, 666918, 714555, 741020, 952740, 1000377, 1111530, 1333836, 1429110, 1667295, 2000754, 2223060, 2858220, 3334590, 4001508, 5001885, 6669180, 10003770, 20007540]

約数ペア:

[(1, 20007540), (2, 10003770), (3, 6669180), (4, 5001885), (5, 4001508), (6, 3334590), (7, 2858220), (9, 2223060), (10, 2000754), (12, 1667295), (14, 1429110), (15, 1333836), (18, 1111530), (20, 1000377), (21, 952740), (27, 741020), (28, 714555), (30, 666918), (35, 571644), (36, 555765), (42, 476370), (45, 444612), (54, 370510), (60, 333459), (63, 317580), (67, 298620), (70, 285822), (79, 253260), (84, 238185), (90, 222306), (105, 190548), (108, 185255), (126, 158790), (134, 149310), (135, 148204), (140, 142911), (158, 126630), (180, 111153), (189, 105860), (201, 99540), (210, 95274), (237, 84420), (252, 79395), (268, 74655), (270, 74102), (315, 63516), (316, 63315), (335, 59724), (378, 52930), (395, 50652), (402, 49770), (420, 47637), (469, 42660), (474, 42210), (540, 37051), (553, 36180), (603, 33180), (630, 31758), (670, 29862), (711, 28140), (756, 26465), (790, 25326), (804, 24885), (938, 21330), (945, 21172), (948, 21105), (1005, 19908), (1106, 18090), (1185, 16884), (1206, 16590), (1260, 15879), (1340, 14931), (1407, 14220), (1422, 14070), (1580, 12663), (1659, 12060), (1809, 11060), (1876, 10665), (1890, 10586), (2010, 9954), (2133, 9380), (2212, 9045), (2345, 8532), (2370, 8442), (2412, 8295), (2765, 7236), (2814, 7110), (2844, 7035), (3015, 6636), (3318, 6030), (3555, 5628), (3618, 5530), (3780, 5293), (4020, 4977), (4221, 4740), (4266, 4690)]