129125416

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{74381}}^1$

素因数の和:74425

約数の個数: 32

約数和(自身を含む): 285626880

約数和(自身を除く): 156501464

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 74381, 148762, 297524, 520667, 595048, 1041334, 2082668, 2305811, 4165336, 4611622, 9223244, 16140677, 18446488, 32281354, 64562708, 129125416]

約数ペア:

[(1, 129125416), (2, 64562708), (4, 32281354), (7, 18446488), (8, 16140677), (14, 9223244), (28, 4611622), (31, 4165336), (56, 2305811), (62, 2082668), (124, 1041334), (217, 595048), (248, 520667), (434, 297524), (868, 148762), (1736, 74381)]