72017320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43913}}^1$

素因数の和:43965

約数の個数: 32

約数和(自身を含む): 165994920

約数和(自身を除く): 93977600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 43913, 87826, 175652, 219565, 351304, 439130, 878260, 1756520, 1800433, 3600866, 7201732, 9002165, 14403464, 18004330, 36008660, 72017320]

約数ペア:

[(1, 72017320), (2, 36008660), (4, 18004330), (5, 14403464), (8, 9002165), (10, 7201732), (20, 3600866), (40, 1800433), (41, 1756520), (82, 878260), (164, 439130), (205, 351304), (328, 219565), (410, 175652), (820, 87826), (1640, 43913)]