20310316

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 41073760

約数和(自身を除く): 20763444

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 61, 76, 122, 244, 247, 337, 494, 674, 793, 988, 1159, 1348, 1586, 2318, 3172, 4381, 4636, 6403, 8762, 12806, 15067, 17524, 20557, 25612, 30134, 41114, 60268, 82228, 83239, 166478, 267241, 332956, 390583, 534482, 781166, 1068964, 1562332, 5077579, 10155158, 20310316]

約数ペア:

[(1, 20310316), (2, 10155158), (4, 5077579), (13, 1562332), (19, 1068964), (26, 781166), (38, 534482), (52, 390583), (61, 332956), (76, 267241), (122, 166478), (244, 83239), (247, 82228), (337, 60268), (494, 41114), (674, 30134), (793, 25612), (988, 20557), (1159, 17524), (1348, 15067), (1586, 12806), (2318, 8762), (3172, 6403), (4381, 4636)]