20770425

素因数分解:

$3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:301

約数の個数: 72

約数和(自身を含む): 41705664

約数和(自身を除く): 20935239

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 243, 263, 325, 351, 405, 585, 675, 789, 975, 1053, 1215, 1315, 1755, 2025, 2367, 2925, 3159, 3419, 3945, 5265, 6075, 6575, 7101, 8775, 10257, 11835, 15795, 17095, 19725, 21303, 26325, 30771, 35505, 51285, 59175, 63909, 78975, 85475, 92313, 106515, 153855, 177525, 256425, 276939, 319545, 461565, 532575, 769275, 830817, 1384695, 1597725, 2307825, 4154085, 6923475, 20770425]

約数ペア:

[(1, 20770425), (3, 6923475), (5, 4154085), (9, 2307825), (13, 1597725), (15, 1384695), (25, 830817), (27, 769275), (39, 532575), (45, 461565), (65, 319545), (75, 276939), (81, 256425), (117, 177525), (135, 153855), (195, 106515), (225, 92313), (243, 85475), (263, 78975), (325, 63909), (351, 59175), (405, 51285), (585, 35505), (675, 30771), (789, 26325), (975, 21303), (1053, 19725), (1215, 17095), (1315, 15795), (1755, 11835), (2025, 10257), (2367, 8775), (2925, 7101), (3159, 6575), (3419, 6075), (3945, 5265)]