734657620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1\times {\mathrm{1061}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 1565600400

約数和(自身を除く): 830942780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 389, 445, 778, 890, 1061, 1556, 1780, 1945, 2122, 3890, 4244, 5305, 7780, 10610, 21220, 34621, 69242, 94429, 138484, 173105, 188858, 346210, 377716, 412729, 472145, 692420, 825458, 944290, 1650916, 1888580, 2063645, 4127290, 8254580, 36732881, 73465762, 146931524, 183664405, 367328810, 734657620]

約数ペア:

[(1, 734657620), (2, 367328810), (4, 183664405), (5, 146931524), (10, 73465762), (20, 36732881), (89, 8254580), (178, 4127290), (356, 2063645), (389, 1888580), (445, 1650916), (778, 944290), (890, 825458), (1061, 692420), (1556, 472145), (1780, 412729), (1945, 377716), (2122, 346210), (3890, 188858), (4244, 173105), (5305, 138484), (7780, 94429), (10610, 69242), (21220, 34621)]