20096642560

素因数分解:

$2^9\times 5^1\times {\mathrm{127}}^1\times {\mathrm{61813}}^1$

素因数の和:61963

約数の個数: 80

約数和(自身を含む): 48565034496

約数和(自身を除く): 28468391936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 512, 635, 640, 1016, 1270, 1280, 2032, 2540, 2560, 4064, 5080, 8128, 10160, 16256, 20320, 32512, 40640, 61813, 65024, 81280, 123626, 162560, 247252, 309065, 325120, 494504, 618130, 989008, 1236260, 1978016, 2472520, 3956032, 4945040, 7850251, 7912064, 9890080, 15700502, 15824128, 19780160, 31401004, 31648256, 39251255, 39560320, 62802008, 78502510, 79120640, 125604016, 157005020, 158241280, 251208032, 314010040, 502416064, 628020080, 1004832128, 1256040160, 2009664256, 2512080320, 4019328512, 5024160640, 10048321280, 20096642560]

約数ペア:

[(1, 20096642560), (2, 10048321280), (4, 5024160640), (5, 4019328512), (8, 2512080320), (10, 2009664256), (16, 1256040160), (20, 1004832128), (32, 628020080), (40, 502416064), (64, 314010040), (80, 251208032), (127, 158241280), (128, 157005020), (160, 125604016), (254, 79120640), (256, 78502510), (320, 62802008), (508, 39560320), (512, 39251255), (635, 31648256), (640, 31401004), (1016, 19780160), (1270, 15824128), (1280, 15700502), (2032, 9890080), (2540, 7912064), (2560, 7850251), (4064, 4945040), (5080, 3956032), (8128, 2472520), (10160, 1978016), (16256, 1236260), (20320, 989008), (32512, 618130), (40640, 494504), (61813, 325120), (65024, 309065), (81280, 247252), (123626, 162560)]