20547120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 160

約数和(自身を含む): 71495424

約数和(自身を除く): 50948304

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 43, 44, 48, 55, 60, 66, 80, 86, 88, 110, 120, 129, 132, 165, 172, 176, 181, 215, 220, 240, 258, 264, 330, 344, 362, 430, 440, 473, 516, 528, 543, 645, 660, 688, 724, 860, 880, 905, 946, 1032, 1086, 1290, 1320, 1419, 1448, 1720, 1810, 1892, 1991, 2064, 2172, 2365, 2580, 2640, 2715, 2838, 2896, 3440, 3620, 3784, 3982, 4344, 4730, 5160, 5430, 5676, 5973, 7095, 7240, 7568, 7783, 7964, 8688, 9460, 9955, 10320, 10860, 11352, 11946, 14190, 14480, 15566, 15928, 18920, 19910, 21720, 22704, 23349, 23892, 28380, 29865, 31132, 31856, 37840, 38915, 39820, 43440, 46698, 47784, 56760, 59730, 62264, 77830, 79640, 85613, 93396, 95568, 113520, 116745, 119460, 124528, 155660, 159280, 171226, 186792, 233490, 238920, 256839, 311320, 342452, 373584, 428065, 466980, 477840, 513678, 622640, 684904, 856130, 933960, 1027356, 1284195, 1369808, 1712260, 1867920, 2054712, 2568390, 3424520, 4109424, 5136780, 6849040, 10273560, 20547120]

約数ペア:

[(1, 20547120), (2, 10273560), (3, 6849040), (4, 5136780), (5, 4109424), (6, 3424520), (8, 2568390), (10, 2054712), (11, 1867920), (12, 1712260), (15, 1369808), (16, 1284195), (20, 1027356), (22, 933960), (24, 856130), (30, 684904), (33, 622640), (40, 513678), (43, 477840), (44, 466980), (48, 428065), (55, 373584), (60, 342452), (66, 311320), (80, 256839), (86, 238920), (88, 233490), (110, 186792), (120, 171226), (129, 159280), (132, 155660), (165, 124528), (172, 119460), (176, 116745), (181, 113520), (215, 95568), (220, 93396), (240, 85613), (258, 79640), (264, 77830), (330, 62264), (344, 59730), (362, 56760), (430, 47784), (440, 46698), (473, 43440), (516, 39820), (528, 38915), (543, 37840), (645, 31856), (660, 31132), (688, 29865), (724, 28380), (860, 23892), (880, 23349), (905, 22704), (946, 21720), (1032, 19910), (1086, 18920), (1290, 15928), (1320, 15566), (1419, 14480), (1448, 14190), (1720, 11946), (1810, 11352), (1892, 10860), (1991, 10320), (2064, 9955), (2172, 9460), (2365, 8688), (2580, 7964), (2640, 7783), (2715, 7568), (2838, 7240), (2896, 7095), (3440, 5973), (3620, 5676), (3784, 5430), (3982, 5160), (4344, 4730)]