8179990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 18506880

約数和(自身を除く): 10326890

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 89, 91, 101, 130, 178, 182, 202, 445, 455, 505, 623, 707, 890, 910, 1010, 1157, 1246, 1313, 1414, 2314, 2626, 3115, 3535, 5785, 6230, 6565, 7070, 8099, 8989, 9191, 11570, 13130, 16198, 17978, 18382, 40495, 44945, 45955, 62923, 80990, 89890, 91910, 116857, 125846, 233714, 314615, 584285, 629230, 817999, 1168570, 1635998, 4089995, 8179990]

約数ペア:

[(1, 8179990), (2, 4089995), (5, 1635998), (7, 1168570), (10, 817999), (13, 629230), (14, 584285), (26, 314615), (35, 233714), (65, 125846), (70, 116857), (89, 91910), (91, 89890), (101, 80990), (130, 62923), (178, 45955), (182, 44945), (202, 40495), (445, 18382), (455, 17978), (505, 16198), (623, 13130), (707, 11570), (890, 9191), (910, 8989), (1010, 8099), (1157, 7070), (1246, 6565), (1313, 6230), (1414, 5785), (2314, 3535), (2626, 3115)]