81838750

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:275

約数の個数: 80

約数和(自身を含む): 179942400

約数和(自身を除く): 98103650

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 50, 70, 94, 125, 175, 199, 235, 250, 329, 350, 398, 470, 625, 658, 875, 995, 1175, 1250, 1393, 1645, 1750, 1990, 2350, 2786, 3290, 4375, 4975, 5875, 6965, 8225, 8750, 9353, 9950, 11750, 13930, 16450, 18706, 24875, 29375, 34825, 41125, 46765, 49750, 58750, 65471, 69650, 82250, 93530, 124375, 130942, 174125, 205625, 233825, 248750, 327355, 348250, 411250, 467650, 654710, 870625, 1169125, 1636775, 1741250, 2338250, 3273550, 5845625, 8183875, 11691250, 16367750, 40919375, 81838750]

約数ペア:

[(1, 81838750), (2, 40919375), (5, 16367750), (7, 11691250), (10, 8183875), (14, 5845625), (25, 3273550), (35, 2338250), (47, 1741250), (50, 1636775), (70, 1169125), (94, 870625), (125, 654710), (175, 467650), (199, 411250), (235, 348250), (250, 327355), (329, 248750), (350, 233825), (398, 205625), (470, 174125), (625, 130942), (658, 124375), (875, 93530), (995, 82250), (1175, 69650), (1250, 65471), (1393, 58750), (1645, 49750), (1750, 46765), (1990, 41125), (2350, 34825), (2786, 29375), (3290, 24875), (4375, 18706), (4975, 16450), (5875, 13930), (6965, 11750), (8225, 9950), (8750, 9353)]