20960280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 192

約数和(自身を含む): 76377600

約数和(自身を除く): 55417320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 67, 72, 79, 88, 90, 99, 110, 120, 132, 134, 158, 165, 180, 198, 201, 220, 237, 264, 268, 316, 330, 335, 360, 395, 396, 402, 440, 474, 495, 536, 603, 632, 660, 670, 711, 737, 790, 792, 804, 869, 948, 990, 1005, 1185, 1206, 1320, 1340, 1422, 1474, 1580, 1608, 1738, 1896, 1980, 2010, 2211, 2370, 2412, 2607, 2680, 2844, 2948, 3015, 3160, 3476, 3555, 3685, 3960, 4020, 4345, 4422, 4740, 4824, 5214, 5293, 5688, 5896, 6030, 6633, 6952, 7110, 7370, 7821, 8040, 8690, 8844, 9480, 10428, 10586, 11055, 12060, 13035, 13266, 14220, 14740, 15642, 15879, 17380, 17688, 20856, 21172, 22110, 24120, 26070, 26465, 26532, 28440, 29480, 31284, 31758, 33165, 34760, 39105, 42344, 44220, 47637, 52140, 52930, 53064, 58223, 62568, 63516, 66330, 78210, 79395, 88440, 95274, 104280, 105860, 116446, 127032, 132660, 156420, 158790, 174669, 190548, 211720, 232892, 238185, 265320, 291115, 312840, 317580, 349338, 381096, 465784, 476370, 524007, 582230, 635160, 698676, 873345, 952740, 1048014, 1164460, 1397352, 1746690, 1905480, 2096028, 2328920, 2620035, 3493380, 4192056, 5240070, 6986760, 10480140, 20960280]

約数ペア:

[(1, 20960280), (2, 10480140), (3, 6986760), (4, 5240070), (5, 4192056), (6, 3493380), (8, 2620035), (9, 2328920), (10, 2096028), (11, 1905480), (12, 1746690), (15, 1397352), (18, 1164460), (20, 1048014), (22, 952740), (24, 873345), (30, 698676), (33, 635160), (36, 582230), (40, 524007), (44, 476370), (45, 465784), (55, 381096), (60, 349338), (66, 317580), (67, 312840), (72, 291115), (79, 265320), (88, 238185), (90, 232892), (99, 211720), (110, 190548), (120, 174669), (132, 158790), (134, 156420), (158, 132660), (165, 127032), (180, 116446), (198, 105860), (201, 104280), (220, 95274), (237, 88440), (264, 79395), (268, 78210), (316, 66330), (330, 63516), (335, 62568), (360, 58223), (395, 53064), (396, 52930), (402, 52140), (440, 47637), (474, 44220), (495, 42344), (536, 39105), (603, 34760), (632, 33165), (660, 31758), (670, 31284), (711, 29480), (737, 28440), (790, 26532), (792, 26465), (804, 26070), (869, 24120), (948, 22110), (990, 21172), (1005, 20856), (1185, 17688), (1206, 17380), (1320, 15879), (1340, 15642), (1422, 14740), (1474, 14220), (1580, 13266), (1608, 13035), (1738, 12060), (1896, 11055), (1980, 10586), (2010, 10428), (2211, 9480), (2370, 8844), (2412, 8690), (2607, 8040), (2680, 7821), (2844, 7370), (2948, 7110), (3015, 6952), (3160, 6633), (3476, 6030), (3555, 5896), (3685, 5688), (3960, 5293), (4020, 5214), (4345, 4824), (4422, 4740)]