1325720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 3421440

約数和(自身を除く): 2095720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 131, 184, 220, 230, 253, 262, 440, 460, 506, 524, 655, 920, 1012, 1048, 1265, 1310, 1441, 2024, 2530, 2620, 2882, 3013, 5060, 5240, 5764, 6026, 7205, 10120, 11528, 12052, 14410, 15065, 24104, 28820, 30130, 33143, 57640, 60260, 66286, 120520, 132572, 165715, 265144, 331430, 662860, 1325720]

約数ペア:

[(1, 1325720), (2, 662860), (4, 331430), (5, 265144), (8, 165715), (10, 132572), (11, 120520), (20, 66286), (22, 60260), (23, 57640), (40, 33143), (44, 30130), (46, 28820), (55, 24104), (88, 15065), (92, 14410), (110, 12052), (115, 11528), (131, 10120), (184, 7205), (220, 6026), (230, 5764), (253, 5240), (262, 5060), (440, 3013), (460, 2882), (506, 2620), (524, 2530), (655, 2024), (920, 1441), (1012, 1310), (1048, 1265)]