51911000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 128

約数和(自身を含む): 132312960

約数和(自身を除く): 80401960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 37, 40, 46, 50, 61, 74, 92, 100, 115, 122, 125, 148, 184, 185, 200, 230, 244, 250, 296, 305, 370, 460, 488, 500, 575, 610, 740, 851, 920, 925, 1000, 1150, 1220, 1403, 1480, 1525, 1702, 1850, 2257, 2300, 2440, 2806, 2875, 3050, 3404, 3700, 4255, 4514, 4600, 4625, 5612, 5750, 6100, 6808, 7015, 7400, 7625, 8510, 9028, 9250, 11224, 11285, 11500, 12200, 14030, 15250, 17020, 18056, 18500, 21275, 22570, 23000, 28060, 30500, 34040, 35075, 37000, 42550, 45140, 51911, 56120, 56425, 61000, 70150, 85100, 90280, 103822, 106375, 112850, 140300, 170200, 175375, 207644, 212750, 225700, 259555, 280600, 282125, 350750, 415288, 425500, 451400, 519110, 564250, 701500, 851000, 1038220, 1128500, 1297775, 1403000, 2076440, 2257000, 2595550, 5191100, 6488875, 10382200, 12977750, 25955500, 51911000]

約数ペア:

[(1, 51911000), (2, 25955500), (4, 12977750), (5, 10382200), (8, 6488875), (10, 5191100), (20, 2595550), (23, 2257000), (25, 2076440), (37, 1403000), (40, 1297775), (46, 1128500), (50, 1038220), (61, 851000), (74, 701500), (92, 564250), (100, 519110), (115, 451400), (122, 425500), (125, 415288), (148, 350750), (184, 282125), (185, 280600), (200, 259555), (230, 225700), (244, 212750), (250, 207644), (296, 175375), (305, 170200), (370, 140300), (460, 112850), (488, 106375), (500, 103822), (575, 90280), (610, 85100), (740, 70150), (851, 61000), (920, 56425), (925, 56120), (1000, 51911), (1150, 45140), (1220, 42550), (1403, 37000), (1480, 35075), (1525, 34040), (1702, 30500), (1850, 28060), (2257, 23000), (2300, 22570), (2440, 21275), (2806, 18500), (2875, 18056), (3050, 17020), (3404, 15250), (3700, 14030), (4255, 12200), (4514, 11500), (4600, 11285), (4625, 11224), (5612, 9250), (5750, 9028), (6100, 8510), (6808, 7625), (7015, 7400)]