20078876144

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{478433}}^1$

素因数の和:478545

約数の個数: 40

約数和(自身を含む): 40460206512

約数和(自身を除く): 20381330368

約数列:

[1, 2, 4, 8, 16, 43, 61, 86, 122, 172, 244, 344, 488, 688, 976, 2623, 5246, 10492, 20984, 41968, 478433, 956866, 1913732, 3827464, 7654928, 20572619, 29184413, 41145238, 58368826, 82290476, 116737652, 164580952, 233475304, 329161904, 466950608, 1254929759, 2509859518, 5019719036, 10039438072, 20078876144]

約数ペア:

[(1, 20078876144), (2, 10039438072), (4, 5019719036), (8, 2509859518), (16, 1254929759), (43, 466950608), (61, 329161904), (86, 233475304), (122, 164580952), (172, 116737652), (244, 82290476), (344, 58368826), (488, 41145238), (688, 29184413), (976, 20572619), (2623, 7654928), (5246, 3827464), (10492, 1913732), (20984, 956866), (41968, 478433)]