19946929168

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{449}}^1\times {\mathrm{89567}}^1$

素因数の和:90055

約数の個数: 40

約数和(自身を含む): 39983155200

約数和(自身を除く): 20036226032

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 449, 496, 898, 1796, 3592, 7184, 13919, 27838, 55676, 89567, 111352, 179134, 222704, 358268, 716536, 1433072, 2776577, 5553154, 11106308, 22212616, 40215583, 44425232, 80431166, 160862332, 321724664, 643449328, 1246683073, 2493366146, 4986732292, 9973464584, 19946929168]

約数ペア:

[(1, 19946929168), (2, 9973464584), (4, 4986732292), (8, 2493366146), (16, 1246683073), (31, 643449328), (62, 321724664), (124, 160862332), (248, 80431166), (449, 44425232), (496, 40215583), (898, 22212616), (1796, 11106308), (3592, 5553154), (7184, 2776577), (13919, 1433072), (27838, 716536), (55676, 358268), (89567, 222704), (111352, 179134)]