18623440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21163}}^1$

素因数の和:21187

約数の個数: 40

約数和(自身を含む): 47238048

約数和(自身を除く): 28614608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21163, 42326, 84652, 105815, 169304, 211630, 232793, 338608, 423260, 465586, 846520, 931172, 1163965, 1693040, 1862344, 2327930, 3724688, 4655860, 9311720, 18623440]

約数ペア:

[(1, 18623440), (2, 9311720), (4, 4655860), (5, 3724688), (8, 2327930), (10, 1862344), (11, 1693040), (16, 1163965), (20, 931172), (22, 846520), (40, 465586), (44, 423260), (55, 338608), (80, 232793), (88, 211630), (110, 169304), (176, 105815), (220, 84652), (440, 42326), (880, 21163)]