287409680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{115891}}^1$

素因数の和:115935

約数の個数: 40

約数和(自身を含む): 689789184

約数和(自身を除く): 402379504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 115891, 231782, 463564, 579455, 927128, 1158910, 1854256, 2317820, 3592621, 4635640, 7185242, 9271280, 14370484, 17963105, 28740968, 35926210, 57481936, 71852420, 143704840, 287409680]

約数ペア:

[(1, 287409680), (2, 143704840), (4, 71852420), (5, 57481936), (8, 35926210), (10, 28740968), (16, 17963105), (20, 14370484), (31, 9271280), (40, 7185242), (62, 4635640), (80, 3592621), (124, 2317820), (155, 1854256), (248, 1158910), (310, 927128), (496, 579455), (620, 463564), (1240, 231782), (2480, 115891)]