26181220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{997}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 59856048

約数和(自身を除く): 33674828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 997, 1010, 1313, 1994, 2020, 2626, 3988, 4985, 5252, 6565, 9970, 12961, 13130, 19940, 25922, 26260, 51844, 64805, 100697, 129610, 201394, 259220, 402788, 503485, 1006970, 1309061, 2013940, 2618122, 5236244, 6545305, 13090610, 26181220]

約数ペア:

[(1, 26181220), (2, 13090610), (4, 6545305), (5, 5236244), (10, 2618122), (13, 2013940), (20, 1309061), (26, 1006970), (52, 503485), (65, 402788), (101, 259220), (130, 201394), (202, 129610), (260, 100697), (404, 64805), (505, 51844), (997, 26260), (1010, 25922), (1313, 19940), (1994, 13130), (2020, 12961), (2626, 9970), (3988, 6565), (4985, 5252)]