257359420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{15121}}^1$

素因数の和:15190

約数の個数: 48

約数和(自身を含む): 579233088

約数和(自身を除く): 321873668

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1702, 3404, 4255, 8510, 15121, 17020, 30242, 60484, 75605, 151210, 302420, 347783, 559477, 695566, 1118954, 1391132, 1738915, 2237908, 2797385, 3477830, 5594770, 6955660, 11189540, 12867971, 25735942, 51471884, 64339855, 128679710, 257359420]

約数ペア:

[(1, 257359420), (2, 128679710), (4, 64339855), (5, 51471884), (10, 25735942), (20, 12867971), (23, 11189540), (37, 6955660), (46, 5594770), (74, 3477830), (92, 2797385), (115, 2237908), (148, 1738915), (185, 1391132), (230, 1118954), (370, 695566), (460, 559477), (740, 347783), (851, 302420), (1702, 151210), (3404, 75605), (4255, 60484), (8510, 30242), (15121, 17020)]