30428825

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 45711360

約数和(自身を除く): 15282535

約数列:

[1, 5, 7, 25, 31, 35, 71, 79, 155, 175, 217, 355, 395, 497, 553, 775, 1085, 1775, 1975, 2201, 2449, 2485, 2765, 5425, 5609, 11005, 12245, 12425, 13825, 15407, 17143, 28045, 39263, 55025, 61225, 77035, 85715, 140225, 173879, 196315, 385175, 428575, 869395, 981575, 1217153, 4346975, 6085765, 30428825]

約数ペア:

[(1, 30428825), (5, 6085765), (7, 4346975), (25, 1217153), (31, 981575), (35, 869395), (71, 428575), (79, 385175), (155, 196315), (175, 173879), (217, 140225), (355, 85715), (395, 77035), (497, 61225), (553, 55025), (775, 39263), (1085, 28045), (1775, 17143), (1975, 15407), (2201, 13825), (2449, 12425), (2485, 12245), (2765, 11005), (5425, 5609)]