78131420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{5557}}^1$

素因数の和:5622

約数の個数: 48

約数和(自身を含む): 177411360

約数和(自身を除く): 99279940

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 2812, 3515, 5557, 7030, 11114, 14060, 22228, 27785, 55570, 105583, 111140, 205609, 211166, 411218, 422332, 527915, 822436, 1028045, 1055830, 2056090, 2111660, 3906571, 4112180, 7813142, 15626284, 19532855, 39065710, 78131420]

約数ペア:

[(1, 78131420), (2, 39065710), (4, 19532855), (5, 15626284), (10, 7813142), (19, 4112180), (20, 3906571), (37, 2111660), (38, 2056090), (74, 1055830), (76, 1028045), (95, 822436), (148, 527915), (185, 422332), (190, 411218), (370, 211166), (380, 205609), (703, 111140), (740, 105583), (1406, 55570), (2812, 27785), (3515, 22228), (5557, 14060), (7030, 11114)]