1236280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 2874240

約数和(自身を除く): 1637960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 997, 1240, 1994, 3988, 4985, 7976, 9970, 19940, 30907, 39880, 61814, 123628, 154535, 247256, 309070, 618140, 1236280]

約数ペア:

[(1, 1236280), (2, 618140), (4, 309070), (5, 247256), (8, 154535), (10, 123628), (20, 61814), (31, 39880), (40, 30907), (62, 19940), (124, 9970), (155, 7976), (248, 4985), (310, 3988), (620, 1994), (997, 1240)]