28158889360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{100769}}^1$

素因数の和:101288

約数の個数: 80

約数和(自身を含む): 74972880000

約数和(自身を除く): 46813990640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 499, 560, 998, 1996, 2495, 3493, 3992, 4990, 6986, 7984, 9980, 13972, 17465, 19960, 27944, 34930, 39920, 55888, 69860, 100769, 139720, 201538, 279440, 403076, 503845, 705383, 806152, 1007690, 1410766, 1612304, 2015380, 2821532, 3526915, 4030760, 5643064, 7053830, 8061520, 11286128, 14107660, 28215320, 50283731, 56430640, 100567462, 201134924, 251418655, 351986117, 402269848, 502837310, 703972234, 804539696, 1005674620, 1407944468, 1759930585, 2011349240, 2815888936, 3519861170, 4022698480, 5631777872, 7039722340, 14079444680, 28158889360]

約数ペア:

[(1, 28158889360), (2, 14079444680), (4, 7039722340), (5, 5631777872), (7, 4022698480), (8, 3519861170), (10, 2815888936), (14, 2011349240), (16, 1759930585), (20, 1407944468), (28, 1005674620), (35, 804539696), (40, 703972234), (56, 502837310), (70, 402269848), (80, 351986117), (112, 251418655), (140, 201134924), (280, 100567462), (499, 56430640), (560, 50283731), (998, 28215320), (1996, 14107660), (2495, 11286128), (3493, 8061520), (3992, 7053830), (4990, 5643064), (6986, 4030760), (7984, 3526915), (9980, 2821532), (13972, 2015380), (17465, 1612304), (19960, 1410766), (27944, 1007690), (34930, 806152), (39920, 705383), (55888, 503845), (69860, 403076), (100769, 279440), (139720, 201538)]