1815940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 4740120

約数和(自身を除く): 2924180

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 109, 119, 140, 170, 196, 218, 238, 245, 340, 436, 476, 490, 545, 595, 763, 833, 980, 1090, 1190, 1526, 1666, 1853, 2180, 2380, 3052, 3332, 3706, 3815, 4165, 5341, 7412, 7630, 8330, 9265, 10682, 12971, 15260, 16660, 18530, 21364, 25942, 26705, 37060, 51884, 53410, 64855, 90797, 106820, 129710, 181594, 259420, 363188, 453985, 907970, 1815940]

約数ペア:

[(1, 1815940), (2, 907970), (4, 453985), (5, 363188), (7, 259420), (10, 181594), (14, 129710), (17, 106820), (20, 90797), (28, 64855), (34, 53410), (35, 51884), (49, 37060), (68, 26705), (70, 25942), (85, 21364), (98, 18530), (109, 16660), (119, 15260), (140, 12971), (170, 10682), (196, 9265), (218, 8330), (238, 7630), (245, 7412), (340, 5341), (436, 4165), (476, 3815), (490, 3706), (545, 3332), (595, 3052), (763, 2380), (833, 2180), (980, 1853), (1090, 1666), (1190, 1526)]