214880840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173291}}^1$

素因数の和:173333

約数の個数: 32

約数和(自身を含む): 499080960

約数和(自身を除く): 284200120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 173291, 346582, 693164, 866455, 1386328, 1732910, 3465820, 5372021, 6931640, 10744042, 21488084, 26860105, 42976168, 53720210, 107440420, 214880840]

約数ペア:

[(1, 214880840), (2, 107440420), (4, 53720210), (5, 42976168), (8, 26860105), (10, 21488084), (20, 10744042), (31, 6931640), (40, 5372021), (62, 3465820), (124, 1732910), (155, 1386328), (248, 866455), (310, 693164), (620, 346582), (1240, 173291)]