28991560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:590

約数の個数: 64

約数和(自身を含む): 70963200

約数和(自身を除く): 41971640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 254, 260, 439, 508, 520, 635, 878, 1016, 1270, 1651, 1756, 2195, 2540, 3302, 3512, 4390, 5080, 5707, 6604, 8255, 8780, 11414, 13208, 16510, 17560, 22828, 28535, 33020, 45656, 55753, 57070, 66040, 111506, 114140, 223012, 228280, 278765, 446024, 557530, 724789, 1115060, 1449578, 2230120, 2899156, 3623945, 5798312, 7247890, 14495780, 28991560]

約数ペア:

[(1, 28991560), (2, 14495780), (4, 7247890), (5, 5798312), (8, 3623945), (10, 2899156), (13, 2230120), (20, 1449578), (26, 1115060), (40, 724789), (52, 557530), (65, 446024), (104, 278765), (127, 228280), (130, 223012), (254, 114140), (260, 111506), (439, 66040), (508, 57070), (520, 55753), (635, 45656), (878, 33020), (1016, 28535), (1270, 22828), (1651, 17560), (1756, 16510), (2195, 13208), (2540, 11414), (3302, 8780), (3512, 8255), (4390, 6604), (5080, 5707)]