838405438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 1470954240

約数和(自身を除く): 632548802

約数列:

[1, 2, 13, 19, 26, 38, 67, 73, 134, 146, 247, 347, 494, 694, 871, 949, 1273, 1387, 1742, 1898, 2546, 2774, 4511, 4891, 6593, 9022, 9782, 13186, 16549, 18031, 23249, 25331, 33098, 36062, 46498, 50662, 63583, 85709, 92929, 127166, 171418, 185858, 302237, 329303, 441731, 481289, 604474, 658606, 883462, 962578, 1208077, 1697177, 2416154, 3394354, 5742503, 6256757, 11485006, 12513514, 22063301, 32246363, 44126602, 64492726, 419202719, 838405438]

約数ペア:

[(1, 838405438), (2, 419202719), (13, 64492726), (19, 44126602), (26, 32246363), (38, 22063301), (67, 12513514), (73, 11485006), (134, 6256757), (146, 5742503), (247, 3394354), (347, 2416154), (494, 1697177), (694, 1208077), (871, 962578), (949, 883462), (1273, 658606), (1387, 604474), (1742, 481289), (1898, 441731), (2546, 329303), (2774, 302237), (4511, 185858), (4891, 171418), (6593, 127166), (9022, 92929), (9782, 85709), (13186, 63583), (16549, 50662), (18031, 46498), (23249, 36062), (25331, 33098)]