87631420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 205793280

約数和(自身を除く): 118161860

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 43, 62, 76, 86, 95, 124, 155, 172, 173, 190, 215, 310, 346, 380, 430, 589, 620, 692, 817, 860, 865, 1178, 1333, 1634, 1730, 2356, 2666, 2945, 3268, 3287, 3460, 4085, 5332, 5363, 5890, 6574, 6665, 7439, 8170, 10726, 11780, 13148, 13330, 14878, 16340, 16435, 21452, 25327, 26660, 26815, 29756, 32870, 37195, 50654, 53630, 65740, 74390, 101308, 101897, 107260, 126635, 141341, 148780, 203794, 230609, 253270, 282682, 407588, 461218, 506540, 509485, 565364, 706705, 922436, 1018970, 1153045, 1413410, 2037940, 2306090, 2826820, 4381571, 4612180, 8763142, 17526284, 21907855, 43815710, 87631420]

約数ペア:

[(1, 87631420), (2, 43815710), (4, 21907855), (5, 17526284), (10, 8763142), (19, 4612180), (20, 4381571), (31, 2826820), (38, 2306090), (43, 2037940), (62, 1413410), (76, 1153045), (86, 1018970), (95, 922436), (124, 706705), (155, 565364), (172, 509485), (173, 506540), (190, 461218), (215, 407588), (310, 282682), (346, 253270), (380, 230609), (430, 203794), (589, 148780), (620, 141341), (692, 126635), (817, 107260), (860, 101897), (865, 101308), (1178, 74390), (1333, 65740), (1634, 53630), (1730, 50654), (2356, 37195), (2666, 32870), (2945, 29756), (3268, 26815), (3287, 26660), (3460, 25327), (4085, 21452), (5332, 16435), (5363, 16340), (5890, 14878), (6574, 13330), (6665, 13148), (7439, 11780), (8170, 10726)]