20155750000

素因数分解:

$2^4\times 5^6\times {\mathrm{37}}^1\times {\mathrm{2179}}^1$

素因数の和:2254

約数の個数: 140

約数和(自身を含む): 50156389240

約数和(自身を除く): 30000639240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 37, 40, 50, 74, 80, 100, 125, 148, 185, 200, 250, 296, 370, 400, 500, 592, 625, 740, 925, 1000, 1250, 1480, 1850, 2000, 2179, 2500, 2960, 3125, 3700, 4358, 4625, 5000, 6250, 7400, 8716, 9250, 10000, 10895, 12500, 14800, 15625, 17432, 18500, 21790, 23125, 25000, 31250, 34864, 37000, 43580, 46250, 50000, 54475, 62500, 74000, 80623, 87160, 92500, 108950, 115625, 125000, 161246, 174320, 185000, 217900, 231250, 250000, 272375, 322492, 370000, 403115, 435800, 462500, 544750, 578125, 644984, 806230, 871600, 925000, 1089500, 1156250, 1289968, 1361875, 1612460, 1850000, 2015575, 2179000, 2312500, 2723750, 3224920, 4031150, 4358000, 4625000, 5447500, 6449840, 6809375, 8062300, 9250000, 10077875, 10895000, 13618750, 16124600, 20155750, 21790000, 27237500, 32249200, 34046875, 40311500, 50389375, 54475000, 68093750, 80623000, 100778750, 108950000, 136187500, 161246000, 201557500, 251946875, 272375000, 403115000, 503893750, 544750000, 806230000, 1007787500, 1259734375, 2015575000, 2519468750, 4031150000, 5038937500, 10077875000, 20155750000]

約数ペア:

[(1, 20155750000), (2, 10077875000), (4, 5038937500), (5, 4031150000), (8, 2519468750), (10, 2015575000), (16, 1259734375), (20, 1007787500), (25, 806230000), (37, 544750000), (40, 503893750), (50, 403115000), (74, 272375000), (80, 251946875), (100, 201557500), (125, 161246000), (148, 136187500), (185, 108950000), (200, 100778750), (250, 80623000), (296, 68093750), (370, 54475000), (400, 50389375), (500, 40311500), (592, 34046875), (625, 32249200), (740, 27237500), (925, 21790000), (1000, 20155750), (1250, 16124600), (1480, 13618750), (1850, 10895000), (2000, 10077875), (2179, 9250000), (2500, 8062300), (2960, 6809375), (3125, 6449840), (3700, 5447500), (4358, 4625000), (4625, 4358000), (5000, 4031150), (6250, 3224920), (7400, 2723750), (8716, 2312500), (9250, 2179000), (10000, 2015575), (10895, 1850000), (12500, 1612460), (14800, 1361875), (15625, 1289968), (17432, 1156250), (18500, 1089500), (21790, 925000), (23125, 871600), (25000, 806230), (31250, 644984), (34864, 578125), (37000, 544750), (43580, 462500), (46250, 435800), (50000, 403115), (54475, 370000), (62500, 322492), (74000, 272375), (80623, 250000), (87160, 231250), (92500, 217900), (108950, 185000), (115625, 174320), (125000, 161246)]