16147880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 42007680

約数和(自身を除く): 25859800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 571, 707, 808, 1010, 1142, 1414, 2020, 2284, 2828, 2855, 3535, 3997, 4040, 4568, 5656, 5710, 7070, 7994, 11420, 14140, 15988, 19985, 22840, 28280, 31976, 39970, 57671, 79940, 115342, 159880, 230684, 288355, 403697, 461368, 576710, 807394, 1153420, 1614788, 2018485, 2306840, 3229576, 4036970, 8073940, 16147880]

約数ペア:

[(1, 16147880), (2, 8073940), (4, 4036970), (5, 3229576), (7, 2306840), (8, 2018485), (10, 1614788), (14, 1153420), (20, 807394), (28, 576710), (35, 461368), (40, 403697), (56, 288355), (70, 230684), (101, 159880), (140, 115342), (202, 79940), (280, 57671), (404, 39970), (505, 31976), (571, 28280), (707, 22840), (808, 19985), (1010, 15988), (1142, 14140), (1414, 11420), (2020, 7994), (2284, 7070), (2828, 5710), (2855, 5656), (3535, 4568), (3997, 4040)]