81842320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1447}}^1$

素因数の和:1568

約数の個数: 80

約数和(自身を含む): 219771648

約数和(自身を除く): 137929328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 202, 280, 404, 505, 560, 707, 808, 1010, 1414, 1447, 1616, 2020, 2828, 2894, 3535, 4040, 5656, 5788, 7070, 7235, 8080, 10129, 11312, 11576, 14140, 14470, 20258, 23152, 28280, 28940, 40516, 50645, 56560, 57880, 81032, 101290, 115760, 146147, 162064, 202580, 292294, 405160, 584588, 730735, 810320, 1023029, 1169176, 1461470, 2046058, 2338352, 2922940, 4092116, 5115145, 5845880, 8184232, 10230290, 11691760, 16368464, 20460580, 40921160, 81842320]

約数ペア:

[(1, 81842320), (2, 40921160), (4, 20460580), (5, 16368464), (7, 11691760), (8, 10230290), (10, 8184232), (14, 5845880), (16, 5115145), (20, 4092116), (28, 2922940), (35, 2338352), (40, 2046058), (56, 1461470), (70, 1169176), (80, 1023029), (101, 810320), (112, 730735), (140, 584588), (202, 405160), (280, 292294), (404, 202580), (505, 162064), (560, 146147), (707, 115760), (808, 101290), (1010, 81032), (1414, 57880), (1447, 56560), (1616, 50645), (2020, 40516), (2828, 28940), (2894, 28280), (3535, 23152), (4040, 20258), (5656, 14470), (5788, 14140), (7070, 11576), (7235, 11312), (8080, 10129)]