19451960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4019}}^1$

素因数の和:4052

約数の個数: 48

約数和(自身を含む): 48119400

約数和(自身を除く): 28667440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4019, 4840, 8038, 16076, 20095, 32152, 40190, 44209, 80380, 88418, 160760, 176836, 221045, 353672, 442090, 486299, 884180, 972598, 1768360, 1945196, 2431495, 3890392, 4862990, 9725980, 19451960]

約数ペア:

[(1, 19451960), (2, 9725980), (4, 4862990), (5, 3890392), (8, 2431495), (10, 1945196), (11, 1768360), (20, 972598), (22, 884180), (40, 486299), (44, 442090), (55, 353672), (88, 221045), (110, 176836), (121, 160760), (220, 88418), (242, 80380), (440, 44209), (484, 40190), (605, 32152), (968, 20095), (1210, 16076), (2420, 8038), (4019, 4840)]