745040

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 40

約数和(自身を含む): 1770720

約数和(自身を除く): 1025680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 139, 268, 278, 335, 536, 556, 670, 695, 1072, 1112, 1340, 1390, 2224, 2680, 2780, 5360, 5560, 9313, 11120, 18626, 37252, 46565, 74504, 93130, 149008, 186260, 372520, 745040]

約数ペア:

[(1, 745040), (2, 372520), (4, 186260), (5, 149008), (8, 93130), (10, 74504), (16, 46565), (20, 37252), (40, 18626), (67, 11120), (80, 9313), (134, 5560), (139, 5360), (268, 2780), (278, 2680), (335, 2224), (536, 1390), (556, 1340), (670, 1112), (695, 1072)]