72217040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{128959}}^1$

素因数の和:128979

約数の個数: 40

約数和(自身を含む): 191892480

約数和(自身を除く): 119675440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 128959, 257918, 515836, 644795, 902713, 1031672, 1289590, 1805426, 2063344, 2579180, 3610852, 4513565, 5158360, 7221704, 9027130, 10316720, 14443408, 18054260, 36108520, 72217040]

約数ペア:

[(1, 72217040), (2, 36108520), (4, 18054260), (5, 14443408), (7, 10316720), (8, 9027130), (10, 7221704), (14, 5158360), (16, 4513565), (20, 3610852), (28, 2579180), (35, 2063344), (40, 1805426), (56, 1289590), (70, 1031672), (80, 902713), (112, 644795), (140, 515836), (280, 257918), (560, 128959)]