81731250

素因数分解:

$2^1\times 3^2\times 5^5\times {\mathrm{1453}}^1$

素因数の和:1486

約数の個数: 72

約数和(自身を含む): 221493636

約数和(自身を除く): 139762386

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 450, 625, 750, 1125, 1250, 1453, 1875, 2250, 2906, 3125, 3750, 4359, 5625, 6250, 7265, 8718, 9375, 11250, 13077, 14530, 18750, 21795, 26154, 28125, 36325, 43590, 56250, 65385, 72650, 108975, 130770, 181625, 217950, 326925, 363250, 544875, 653850, 908125, 1089750, 1634625, 1816250, 2724375, 3269250, 4540625, 5448750, 8173125, 9081250, 13621875, 16346250, 27243750, 40865625, 81731250]

約数ペア:

[(1, 81731250), (2, 40865625), (3, 27243750), (5, 16346250), (6, 13621875), (9, 9081250), (10, 8173125), (15, 5448750), (18, 4540625), (25, 3269250), (30, 2724375), (45, 1816250), (50, 1634625), (75, 1089750), (90, 908125), (125, 653850), (150, 544875), (225, 363250), (250, 326925), (375, 217950), (450, 181625), (625, 130770), (750, 108975), (1125, 72650), (1250, 65385), (1453, 56250), (1875, 43590), (2250, 36325), (2906, 28125), (3125, 26154), (3750, 21795), (4359, 18750), (5625, 14530), (6250, 13077), (7265, 11250), (8718, 9375)]