1958000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:123

約数の個数: 80

約数和(自身を含む): 5222880

約数和(自身を除く): 3264880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 89, 100, 110, 125, 176, 178, 200, 220, 250, 275, 356, 400, 440, 445, 500, 550, 712, 880, 890, 979, 1000, 1100, 1375, 1424, 1780, 1958, 2000, 2200, 2225, 2750, 3560, 3916, 4400, 4450, 4895, 5500, 7120, 7832, 8900, 9790, 11000, 11125, 15664, 17800, 19580, 22000, 22250, 24475, 35600, 39160, 44500, 48950, 78320, 89000, 97900, 122375, 178000, 195800, 244750, 391600, 489500, 979000, 1958000]

約数ペア:

[(1, 1958000), (2, 979000), (4, 489500), (5, 391600), (8, 244750), (10, 195800), (11, 178000), (16, 122375), (20, 97900), (22, 89000), (25, 78320), (40, 48950), (44, 44500), (50, 39160), (55, 35600), (80, 24475), (88, 22250), (89, 22000), (100, 19580), (110, 17800), (125, 15664), (176, 11125), (178, 11000), (200, 9790), (220, 8900), (250, 7832), (275, 7120), (356, 5500), (400, 4895), (440, 4450), (445, 4400), (500, 3916), (550, 3560), (712, 2750), (880, 2225), (890, 2200), (979, 2000), (1000, 1958), (1100, 1780), (1375, 1424)]