19960280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16097}}^1$

素因数の和:16139

約数の個数: 32

約数和(自身を含む): 46362240

約数和(自身を除く): 26401960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16097, 32194, 64388, 80485, 128776, 160970, 321940, 499007, 643880, 998014, 1996028, 2495035, 3992056, 4990070, 9980140, 19960280]

約数ペア:

[(1, 19960280), (2, 9980140), (4, 4990070), (5, 3992056), (8, 2495035), (10, 1996028), (20, 998014), (31, 643880), (40, 499007), (62, 321940), (124, 160970), (155, 128776), (248, 80485), (310, 64388), (620, 32194), (1240, 16097)]