64763892880

素因数分解:

$2^4\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{627071}}^1$

素因数の和:628375

約数の個数: 40

約数和(自身を含む): 150692926464

約数和(自身を除く): 85929033584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1291, 2582, 5164, 6455, 10328, 12910, 20656, 25820, 51640, 103280, 627071, 1254142, 2508284, 3135355, 5016568, 6270710, 10033136, 12541420, 25082840, 50165680, 809548661, 1619097322, 3238194644, 4047743305, 6476389288, 8095486610, 12952778576, 16190973220, 32381946440, 64763892880]

約数ペア:

[(1, 64763892880), (2, 32381946440), (4, 16190973220), (5, 12952778576), (8, 8095486610), (10, 6476389288), (16, 4047743305), (20, 3238194644), (40, 1619097322), (80, 809548661), (1291, 50165680), (2582, 25082840), (5164, 12541420), (6455, 10033136), (10328, 6270710), (12910, 5016568), (20656, 3135355), (25820, 2508284), (51640, 1254142), (103280, 627071)]