68504020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7121}}^1$

素因数の和:7180

約数の個数: 48

約数和(自身を含む): 159133968

約数和(自身を除く): 90629948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 7121, 9620, 14242, 28484, 35605, 71210, 92573, 142420, 185146, 263477, 370292, 462865, 526954, 925730, 1053908, 1317385, 1851460, 2634770, 3425201, 5269540, 6850402, 13700804, 17126005, 34252010, 68504020]

約数ペア:

[(1, 68504020), (2, 34252010), (4, 17126005), (5, 13700804), (10, 6850402), (13, 5269540), (20, 3425201), (26, 2634770), (37, 1851460), (52, 1317385), (65, 1053908), (74, 925730), (130, 526954), (148, 462865), (185, 370292), (260, 263477), (370, 185146), (481, 142420), (740, 92573), (962, 71210), (1924, 35605), (2405, 28484), (4810, 14242), (7121, 9620)]