81200272

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:647

約数の個数: 40

約数和(自身を含む): 161017472

約数和(自身を除く): 79817200

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 271, 307, 488, 542, 614, 976, 1084, 1228, 2168, 2456, 4336, 4912, 16531, 18727, 33062, 37454, 66124, 74908, 83197, 132248, 149816, 166394, 264496, 299632, 332788, 665576, 1331152, 5075017, 10150034, 20300068, 40600136, 81200272]

約数ペア:

[(1, 81200272), (2, 40600136), (4, 20300068), (8, 10150034), (16, 5075017), (61, 1331152), (122, 665576), (244, 332788), (271, 299632), (307, 264496), (488, 166394), (542, 149816), (614, 132248), (976, 83197), (1084, 74908), (1228, 66124), (2168, 37454), (2456, 33062), (4336, 18727), (4912, 16531)]