8738620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 21182112

約数和(自身を除く): 12443492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 157, 220, 230, 242, 253, 314, 460, 484, 506, 605, 628, 785, 1012, 1210, 1265, 1570, 1727, 2420, 2530, 2783, 3140, 3454, 3611, 5060, 5566, 6908, 7222, 8635, 11132, 13915, 14444, 17270, 18055, 18997, 27830, 34540, 36110, 37994, 39721, 55660, 72220, 75988, 79442, 94985, 158884, 189970, 198605, 379940, 397210, 436931, 794420, 873862, 1747724, 2184655, 4369310, 8738620]

約数ペア:

[(1, 8738620), (2, 4369310), (4, 2184655), (5, 1747724), (10, 873862), (11, 794420), (20, 436931), (22, 397210), (23, 379940), (44, 198605), (46, 189970), (55, 158884), (92, 94985), (110, 79442), (115, 75988), (121, 72220), (157, 55660), (220, 39721), (230, 37994), (242, 36110), (253, 34540), (314, 27830), (460, 18997), (484, 18055), (506, 17270), (605, 14444), (628, 13915), (785, 11132), (1012, 8635), (1210, 7222), (1265, 6908), (1570, 5566), (1727, 5060), (2420, 3611), (2530, 3454), (2783, 3140)]