212340275

素因数分解:

$5^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1787}}^1$

素因数の和:1908

約数の個数: 36

約数和(自身を含む): 309620808

約数和(自身を除く): 97280533

約数列:

[1, 5, 7, 25, 35, 49, 97, 175, 245, 485, 679, 1225, 1787, 2425, 3395, 4753, 8935, 12509, 16975, 23765, 44675, 62545, 87563, 118825, 173339, 312725, 437815, 866695, 1213373, 2189075, 4333475, 6066865, 8493611, 30334325, 42468055, 212340275]

約数ペア:

[(1, 212340275), (5, 42468055), (7, 30334325), (25, 8493611), (35, 6066865), (49, 4333475), (97, 2189075), (175, 1213373), (245, 866695), (485, 437815), (679, 312725), (1225, 173339), (1787, 118825), (2425, 87563), (3395, 62545), (4753, 44675), (8935, 23765), (12509, 16975)]