28363780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 61621056

約数和(自身を除く): 33257276

約数列:

[1, 2, 4, 5, 10, 20, 61, 67, 122, 134, 244, 268, 305, 335, 347, 610, 670, 694, 1220, 1340, 1388, 1735, 3470, 4087, 6940, 8174, 16348, 20435, 21167, 23249, 40870, 42334, 46498, 81740, 84668, 92996, 105835, 116245, 211670, 232490, 423340, 464980, 1418189, 2836378, 5672756, 7090945, 14181890, 28363780]

約数ペア:

[(1, 28363780), (2, 14181890), (4, 7090945), (5, 5672756), (10, 2836378), (20, 1418189), (61, 464980), (67, 423340), (122, 232490), (134, 211670), (244, 116245), (268, 105835), (305, 92996), (335, 84668), (347, 81740), (610, 46498), (670, 42334), (694, 40870), (1220, 23249), (1340, 21167), (1388, 20435), (1735, 16348), (3470, 8174), (4087, 6940)]