19356920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:129

約数の個数: 128

約数和(自身を含む): 51710400

約数和(自身を除く): 32353480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 37, 40, 41, 44, 55, 58, 74, 82, 88, 110, 116, 145, 148, 164, 185, 205, 220, 232, 290, 296, 319, 328, 370, 407, 410, 440, 451, 580, 638, 740, 814, 820, 902, 1073, 1160, 1189, 1276, 1480, 1517, 1595, 1628, 1640, 1804, 2035, 2146, 2255, 2378, 2552, 3034, 3190, 3256, 3608, 4070, 4292, 4510, 4756, 5365, 5945, 6068, 6380, 7585, 8140, 8584, 9020, 9512, 10730, 11803, 11890, 12136, 12760, 13079, 15170, 16280, 16687, 18040, 21460, 23606, 23780, 26158, 30340, 33374, 42920, 43993, 47212, 47560, 52316, 59015, 60680, 65395, 66748, 83435, 87986, 94424, 104632, 118030, 130790, 133496, 166870, 175972, 219965, 236060, 261580, 333740, 351944, 439930, 472120, 483923, 523160, 667480, 879860, 967846, 1759720, 1935692, 2419615, 3871384, 4839230, 9678460, 19356920]

約数ペア:

[(1, 19356920), (2, 9678460), (4, 4839230), (5, 3871384), (8, 2419615), (10, 1935692), (11, 1759720), (20, 967846), (22, 879860), (29, 667480), (37, 523160), (40, 483923), (41, 472120), (44, 439930), (55, 351944), (58, 333740), (74, 261580), (82, 236060), (88, 219965), (110, 175972), (116, 166870), (145, 133496), (148, 130790), (164, 118030), (185, 104632), (205, 94424), (220, 87986), (232, 83435), (290, 66748), (296, 65395), (319, 60680), (328, 59015), (370, 52316), (407, 47560), (410, 47212), (440, 43993), (451, 42920), (580, 33374), (638, 30340), (740, 26158), (814, 23780), (820, 23606), (902, 21460), (1073, 18040), (1160, 16687), (1189, 16280), (1276, 15170), (1480, 13079), (1517, 12760), (1595, 12136), (1628, 11890), (1640, 11803), (1804, 10730), (2035, 9512), (2146, 9020), (2255, 8584), (2378, 8140), (2552, 7585), (3034, 6380), (3190, 6068), (3256, 5945), (3608, 5365), (4070, 4756), (4292, 4510)]