20427990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{601}}^1$

素因数の和:725

約数の個数: 64

約数和(自身を含む): 54093312

約数和(自身を除く): 33665322

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 103, 110, 165, 206, 309, 330, 515, 601, 618, 1030, 1133, 1202, 1545, 1803, 2266, 3005, 3090, 3399, 3606, 5665, 6010, 6611, 6798, 9015, 11330, 13222, 16995, 18030, 19833, 33055, 33990, 39666, 61903, 66110, 99165, 123806, 185709, 198330, 309515, 371418, 619030, 680933, 928545, 1361866, 1857090, 2042799, 3404665, 4085598, 6809330, 10213995, 20427990]

約数ペア:

[(1, 20427990), (2, 10213995), (3, 6809330), (5, 4085598), (6, 3404665), (10, 2042799), (11, 1857090), (15, 1361866), (22, 928545), (30, 680933), (33, 619030), (55, 371418), (66, 309515), (103, 198330), (110, 185709), (165, 123806), (206, 99165), (309, 66110), (330, 61903), (515, 39666), (601, 33990), (618, 33055), (1030, 19833), (1133, 18030), (1202, 16995), (1545, 13222), (1803, 11330), (2266, 9015), (3005, 6798), (3090, 6611), (3399, 6010), (3606, 5665)]