19095700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 45946712

約数和(自身を除く): 26851012

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 37, 50, 52, 65, 74, 100, 130, 148, 185, 260, 325, 370, 397, 481, 650, 740, 794, 925, 962, 1300, 1588, 1850, 1924, 1985, 2405, 3700, 3970, 4810, 5161, 7940, 9620, 9925, 10322, 12025, 14689, 19850, 20644, 24050, 25805, 29378, 39700, 48100, 51610, 58756, 73445, 103220, 129025, 146890, 190957, 258050, 293780, 367225, 381914, 516100, 734450, 763828, 954785, 1468900, 1909570, 3819140, 4773925, 9547850, 19095700]

約数ペア:

[(1, 19095700), (2, 9547850), (4, 4773925), (5, 3819140), (10, 1909570), (13, 1468900), (20, 954785), (25, 763828), (26, 734450), (37, 516100), (50, 381914), (52, 367225), (65, 293780), (74, 258050), (100, 190957), (130, 146890), (148, 129025), (185, 103220), (260, 73445), (325, 58756), (370, 51610), (397, 48100), (481, 39700), (650, 29378), (740, 25805), (794, 24050), (925, 20644), (962, 19850), (1300, 14689), (1588, 12025), (1850, 10322), (1924, 9925), (1985, 9620), (2405, 7940), (3700, 5161), (3970, 4810)]