81999750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{15619}}^1$

素因数の和:15646

約数の個数: 64

約数和(自身を含む): 233925120

約数和(自身を除く): 151925370

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 175, 210, 250, 350, 375, 525, 750, 875, 1050, 1750, 2625, 5250, 15619, 31238, 46857, 78095, 93714, 109333, 156190, 218666, 234285, 327999, 390475, 468570, 546665, 655998, 780950, 1093330, 1171425, 1639995, 1952375, 2342850, 2733325, 3279990, 3904750, 5466650, 5857125, 8199975, 11714250, 13666625, 16399950, 27333250, 40999875, 81999750]

約数ペア:

[(1, 81999750), (2, 40999875), (3, 27333250), (5, 16399950), (6, 13666625), (7, 11714250), (10, 8199975), (14, 5857125), (15, 5466650), (21, 3904750), (25, 3279990), (30, 2733325), (35, 2342850), (42, 1952375), (50, 1639995), (70, 1171425), (75, 1093330), (105, 780950), (125, 655998), (150, 546665), (175, 468570), (210, 390475), (250, 327999), (350, 234285), (375, 218666), (525, 156190), (750, 109333), (875, 93714), (1050, 78095), (1750, 46857), (2625, 31238), (5250, 15619)]