19881050

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1383

約数の個数: 48

約数和(自身を含む): 43276992

約数和(自身を除く): 23395942

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 70, 86, 175, 215, 301, 350, 430, 602, 1075, 1321, 1505, 2150, 2642, 3010, 6605, 7525, 9247, 13210, 15050, 18494, 33025, 46235, 56803, 66050, 92470, 113606, 231175, 284015, 397621, 462350, 568030, 795242, 1420075, 1988105, 2840150, 3976210, 9940525, 19881050]

約数ペア:

[(1, 19881050), (2, 9940525), (5, 3976210), (7, 2840150), (10, 1988105), (14, 1420075), (25, 795242), (35, 568030), (43, 462350), (50, 397621), (70, 284015), (86, 231175), (175, 113606), (215, 92470), (301, 66050), (350, 56803), (430, 46235), (602, 33025), (1075, 18494), (1321, 15050), (1505, 13210), (2150, 9247), (2642, 7525), (3010, 6605)]