1390917780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1103903}}^1$

素因数の和:1103925

約数の個数: 72

約数和(自身を含む): 4821852672

約数和(自身を除く): 3430934892

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1103903, 2207806, 3311709, 4415612, 5519515, 6623418, 7727321, 9935127, 11039030, 13246836, 15454642, 16558545, 19870254, 22078060, 23181963, 30909284, 33117090, 38636605, 39740508, 46363926, 49675635, 66234180, 69545889, 77273210, 92727852, 99351270, 115909815, 139091778, 154546420, 198702540, 231819630, 278183556, 347729445, 463639260, 695458890, 1390917780]

約数ペア:

[(1, 1390917780), (2, 695458890), (3, 463639260), (4, 347729445), (5, 278183556), (6, 231819630), (7, 198702540), (9, 154546420), (10, 139091778), (12, 115909815), (14, 99351270), (15, 92727852), (18, 77273210), (20, 69545889), (21, 66234180), (28, 49675635), (30, 46363926), (35, 39740508), (36, 38636605), (42, 33117090), (45, 30909284), (60, 23181963), (63, 22078060), (70, 19870254), (84, 16558545), (90, 15454642), (105, 13246836), (126, 11039030), (140, 9935127), (180, 7727321), (210, 6623418), (252, 5519515), (315, 4415612), (420, 3311709), (630, 2207806), (1260, 1103903)]