19660520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44683}}^1$

素因数の和:44705

約数の個数: 32

約数和(自身を含む): 48258720

約数和(自身を除く): 28598200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44683, 89366, 178732, 223415, 357464, 446830, 491513, 893660, 983026, 1787320, 1966052, 2457565, 3932104, 4915130, 9830260, 19660520]

約数ペア:

[(1, 19660520), (2, 9830260), (4, 4915130), (5, 3932104), (8, 2457565), (10, 1966052), (11, 1787320), (20, 983026), (22, 893660), (40, 491513), (44, 446830), (55, 357464), (88, 223415), (110, 178732), (220, 89366), (440, 44683)]