19827500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 54582528

約数和(自身を除く): 34755028

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 103, 110, 125, 140, 154, 175, 206, 220, 250, 275, 308, 350, 385, 412, 500, 515, 550, 625, 700, 721, 770, 875, 1030, 1100, 1133, 1250, 1375, 1442, 1540, 1750, 1925, 2060, 2266, 2500, 2575, 2750, 2884, 3500, 3605, 3850, 4375, 4532, 5150, 5500, 5665, 6875, 7210, 7700, 7931, 8750, 9625, 10300, 11330, 12875, 13750, 14420, 15862, 17500, 18025, 19250, 22660, 25750, 27500, 28325, 31724, 36050, 38500, 39655, 48125, 51500, 56650, 64375, 72100, 79310, 90125, 96250, 113300, 128750, 141625, 158620, 180250, 192500, 198275, 257500, 283250, 360500, 396550, 450625, 566500, 708125, 793100, 901250, 991375, 1416250, 1802500, 1982750, 2832500, 3965500, 4956875, 9913750, 19827500]

約数ペア:

[(1, 19827500), (2, 9913750), (4, 4956875), (5, 3965500), (7, 2832500), (10, 1982750), (11, 1802500), (14, 1416250), (20, 991375), (22, 901250), (25, 793100), (28, 708125), (35, 566500), (44, 450625), (50, 396550), (55, 360500), (70, 283250), (77, 257500), (100, 198275), (103, 192500), (110, 180250), (125, 158620), (140, 141625), (154, 128750), (175, 113300), (206, 96250), (220, 90125), (250, 79310), (275, 72100), (308, 64375), (350, 56650), (385, 51500), (412, 48125), (500, 39655), (515, 38500), (550, 36050), (625, 31724), (700, 28325), (721, 27500), (770, 25750), (875, 22660), (1030, 19250), (1100, 18025), (1133, 17500), (1250, 15862), (1375, 14420), (1442, 13750), (1540, 12875), (1750, 11330), (1925, 10300), (2060, 9625), (2266, 8750), (2500, 7931), (2575, 7700), (2750, 7210), (2884, 6875), (3500, 5665), (3605, 5500), (3850, 5150), (4375, 4532)]