8073940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 19603584

約数和(自身を除く): 11529644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 571, 707, 1010, 1142, 1414, 2020, 2284, 2828, 2855, 3535, 3997, 5710, 7070, 7994, 11420, 14140, 15988, 19985, 39970, 57671, 79940, 115342, 230684, 288355, 403697, 576710, 807394, 1153420, 1614788, 2018485, 4036970, 8073940]

約数ペア:

[(1, 8073940), (2, 4036970), (4, 2018485), (5, 1614788), (7, 1153420), (10, 807394), (14, 576710), (20, 403697), (28, 288355), (35, 230684), (70, 115342), (101, 79940), (140, 57671), (202, 39970), (404, 19985), (505, 15988), (571, 14140), (707, 11420), (1010, 7994), (1142, 7070), (1414, 5710), (2020, 3997), (2284, 3535), (2828, 2855)]