9818780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 21500640

約数和(自身を除く): 11681860

約数列:

[1, 2, 4, 5, 10, 20, 53, 59, 106, 118, 157, 212, 236, 265, 295, 314, 530, 590, 628, 785, 1060, 1180, 1570, 3127, 3140, 6254, 8321, 9263, 12508, 15635, 16642, 18526, 31270, 33284, 37052, 41605, 46315, 62540, 83210, 92630, 166420, 185260, 490939, 981878, 1963756, 2454695, 4909390, 9818780]

約数ペア:

[(1, 9818780), (2, 4909390), (4, 2454695), (5, 1963756), (10, 981878), (20, 490939), (53, 185260), (59, 166420), (106, 92630), (118, 83210), (157, 62540), (212, 46315), (236, 41605), (265, 37052), (295, 33284), (314, 31270), (530, 18526), (590, 16642), (628, 15635), (785, 12508), (1060, 9263), (1180, 8321), (1570, 6254), (3127, 3140)]