17640520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^2\times {\mathrm{157}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 40711860

約数和(自身を除く): 23071340

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 157, 212, 265, 314, 424, 530, 628, 785, 1060, 1256, 1570, 2120, 2809, 3140, 5618, 6280, 8321, 11236, 14045, 16642, 22472, 28090, 33284, 41605, 56180, 66568, 83210, 112360, 166420, 332840, 441013, 882026, 1764052, 2205065, 3528104, 4410130, 8820260, 17640520]

約数ペア:

[(1, 17640520), (2, 8820260), (4, 4410130), (5, 3528104), (8, 2205065), (10, 1764052), (20, 882026), (40, 441013), (53, 332840), (106, 166420), (157, 112360), (212, 83210), (265, 66568), (314, 56180), (424, 41605), (530, 33284), (628, 28090), (785, 22472), (1060, 16642), (1256, 14045), (1570, 11236), (2120, 8321), (2809, 6280), (3140, 5618)]