841520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 40

約数和(自身を含む): 1998384

約数和(自身を除く): 1156864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 157, 268, 314, 335, 536, 628, 670, 785, 1072, 1256, 1340, 1570, 2512, 2680, 3140, 5360, 6280, 10519, 12560, 21038, 42076, 52595, 84152, 105190, 168304, 210380, 420760, 841520]

約数ペア:

[(1, 841520), (2, 420760), (4, 210380), (5, 168304), (8, 105190), (10, 84152), (16, 52595), (20, 42076), (40, 21038), (67, 12560), (80, 10519), (134, 6280), (157, 5360), (268, 3140), (314, 2680), (335, 2512), (536, 1570), (628, 1340), (670, 1256), (785, 1072)]