638242570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1493}}^1$

素因数の和:1735

約数の個数: 64

約数和(自身を含む): 1363101696

約数和(自身を除く): 724859126

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 197, 217, 310, 394, 434, 985, 1085, 1379, 1493, 1970, 2170, 2758, 2986, 6107, 6895, 7465, 10451, 12214, 13790, 14930, 20902, 30535, 42749, 46283, 52255, 61070, 85498, 92566, 104510, 213745, 231415, 294121, 323981, 427490, 462830, 588242, 647962, 1470605, 1619905, 2058847, 2941210, 3239810, 4117694, 9117751, 10294235, 18235502, 20588470, 45588755, 63824257, 91177510, 127648514, 319121285, 638242570]

約数ペア:

[(1, 638242570), (2, 319121285), (5, 127648514), (7, 91177510), (10, 63824257), (14, 45588755), (31, 20588470), (35, 18235502), (62, 10294235), (70, 9117751), (155, 4117694), (197, 3239810), (217, 2941210), (310, 2058847), (394, 1619905), (434, 1470605), (985, 647962), (1085, 588242), (1379, 462830), (1493, 427490), (1970, 323981), (2170, 294121), (2758, 231415), (2986, 213745), (6107, 104510), (6895, 92566), (7465, 85498), (10451, 61070), (12214, 52255), (13790, 46283), (14930, 42749), (20902, 30535)]