12920232040

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1\times {\mathrm{8693}}^1$

素因数の和:9286

約数の個数: 64

約数和(自身を含む): 29530040400

約数和(自身を除く): 16609808360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 509, 584, 730, 1018, 1460, 2036, 2545, 2920, 4072, 5090, 8693, 10180, 17386, 20360, 34772, 37157, 43465, 69544, 74314, 86930, 148628, 173860, 185785, 297256, 347720, 371570, 634589, 743140, 1269178, 1486280, 2538356, 3172945, 4424737, 5076712, 6345890, 8849474, 12691780, 17698948, 22123685, 25383560, 35397896, 44247370, 88494740, 176989480, 323005801, 646011602, 1292023204, 1615029005, 2584046408, 3230058010, 6460116020, 12920232040]

約数ペア:

[(1, 12920232040), (2, 6460116020), (4, 3230058010), (5, 2584046408), (8, 1615029005), (10, 1292023204), (20, 646011602), (40, 323005801), (73, 176989480), (146, 88494740), (292, 44247370), (365, 35397896), (509, 25383560), (584, 22123685), (730, 17698948), (1018, 12691780), (1460, 8849474), (2036, 6345890), (2545, 5076712), (2920, 4424737), (4072, 3172945), (5090, 2538356), (8693, 1486280), (10180, 1269178), (17386, 743140), (20360, 634589), (34772, 371570), (37157, 347720), (43465, 297256), (69544, 185785), (74314, 173860), (86930, 148628)]