291247325

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 388546560

約数和(自身を除く): 97299235

約数列:

[1, 5, 25, 31, 67, 71, 79, 155, 335, 355, 395, 775, 1675, 1775, 1975, 2077, 2201, 2449, 4757, 5293, 5609, 10385, 11005, 12245, 23785, 26465, 28045, 51925, 55025, 61225, 118925, 132325, 140225, 147467, 164083, 173879, 375803, 737335, 820415, 869395, 1879015, 3686675, 4102075, 4346975, 9395075, 11649893, 58249465, 291247325]

約数ペア:

[(1, 291247325), (5, 58249465), (25, 11649893), (31, 9395075), (67, 4346975), (71, 4102075), (79, 3686675), (155, 1879015), (335, 869395), (355, 820415), (395, 737335), (775, 375803), (1675, 173879), (1775, 164083), (1975, 147467), (2077, 140225), (2201, 132325), (2449, 118925), (4757, 61225), (5293, 55025), (5609, 51925), (10385, 28045), (11005, 26465), (12245, 23785)]