311940100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{8641}}^1$

素因数の和:8693

約数の個数: 54

約数和(自身を含む): 714494634

約数和(自身を除く): 402554534

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 361, 380, 475, 722, 950, 1444, 1805, 1900, 3610, 7220, 8641, 9025, 17282, 18050, 34564, 36100, 43205, 86410, 164179, 172820, 216025, 328358, 432050, 656716, 820895, 864100, 1641790, 3119401, 3283580, 4104475, 6238802, 8208950, 12477604, 15597005, 16417900, 31194010, 62388020, 77985025, 155970050, 311940100]

約数ペア:

[(1, 311940100), (2, 155970050), (4, 77985025), (5, 62388020), (10, 31194010), (19, 16417900), (20, 15597005), (25, 12477604), (38, 8208950), (50, 6238802), (76, 4104475), (95, 3283580), (100, 3119401), (190, 1641790), (361, 864100), (380, 820895), (475, 656716), (722, 432050), (950, 328358), (1444, 216025), (1805, 172820), (1900, 164179), (3610, 86410), (7220, 43205), (8641, 36100), (9025, 34564), (17282, 18050)]