2021907575

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1693}}^1$

素因数の和:1824

約数の個数: 48

約数和(自身を含む): 2742491136

約数和(自身を除く): 720583561

約数列:

[1, 5, 23, 25, 31, 67, 115, 155, 335, 575, 713, 775, 1541, 1675, 1693, 2077, 3565, 7705, 8465, 10385, 17825, 38525, 38939, 42325, 47771, 51925, 52483, 113431, 194695, 238855, 262415, 567155, 973475, 1194275, 1207109, 1312075, 2608913, 2835775, 3516361, 6035545, 13044565, 17581805, 30177725, 65222825, 80876303, 87909025, 404381515, 2021907575]

約数ペア:

[(1, 2021907575), (5, 404381515), (23, 87909025), (25, 80876303), (31, 65222825), (67, 30177725), (115, 17581805), (155, 13044565), (335, 6035545), (575, 3516361), (713, 2835775), (775, 2608913), (1541, 1312075), (1675, 1207109), (1693, 1194275), (2077, 973475), (3565, 567155), (7705, 262415), (8465, 238855), (10385, 194695), (17825, 113431), (38525, 52483), (38939, 51925), (42325, 47771)]