1817900

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{53}}^1$

素因数の和:88

約数の個数: 72

約数和(自身を含む): 4687200

約数和(自身を除く): 2869300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 53, 70, 98, 100, 106, 140, 175, 196, 212, 245, 265, 343, 350, 371, 490, 530, 686, 700, 742, 980, 1060, 1225, 1325, 1372, 1484, 1715, 1855, 2450, 2597, 2650, 3430, 3710, 4900, 5194, 5300, 6860, 7420, 8575, 9275, 10388, 12985, 17150, 18179, 18550, 25970, 34300, 36358, 37100, 51940, 64925, 72716, 90895, 129850, 181790, 259700, 363580, 454475, 908950, 1817900]

約数ペア:

[(1, 1817900), (2, 908950), (4, 454475), (5, 363580), (7, 259700), (10, 181790), (14, 129850), (20, 90895), (25, 72716), (28, 64925), (35, 51940), (49, 37100), (50, 36358), (53, 34300), (70, 25970), (98, 18550), (100, 18179), (106, 17150), (140, 12985), (175, 10388), (196, 9275), (212, 8575), (245, 7420), (265, 6860), (343, 5300), (350, 5194), (371, 4900), (490, 3710), (530, 3430), (686, 2650), (700, 2597), (742, 2450), (980, 1855), (1060, 1715), (1225, 1484), (1325, 1372)]