18258020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2243}}^1$

素因数の和:2300

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 24719068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2243, 4070, 4486, 8140, 8972, 11215, 22430, 24673, 44860, 49346, 82991, 98692, 123365, 165982, 246730, 331964, 414955, 493460, 829910, 912901, 1659820, 1825802, 3651604, 4564505, 9129010, 18258020]

約数ペア:

[(1, 18258020), (2, 9129010), (4, 4564505), (5, 3651604), (10, 1825802), (11, 1659820), (20, 912901), (22, 829910), (37, 493460), (44, 414955), (55, 331964), (74, 246730), (110, 165982), (148, 123365), (185, 98692), (220, 82991), (370, 49346), (407, 44860), (740, 24673), (814, 22430), (1628, 11215), (2035, 8972), (2243, 8140), (4070, 4486)]