8451220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 18805248

約数和(自身を除く): 10354028

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 317, 430, 620, 634, 860, 1268, 1333, 1585, 2666, 3170, 5332, 6340, 6665, 9827, 13330, 13631, 19654, 26660, 27262, 39308, 49135, 54524, 68155, 98270, 136310, 196540, 272620, 422561, 845122, 1690244, 2112805, 4225610, 8451220]

約数ペア:

[(1, 8451220), (2, 4225610), (4, 2112805), (5, 1690244), (10, 845122), (20, 422561), (31, 272620), (43, 196540), (62, 136310), (86, 98270), (124, 68155), (155, 54524), (172, 49135), (215, 39308), (310, 27262), (317, 26660), (430, 19654), (620, 13631), (634, 13330), (860, 9827), (1268, 6665), (1333, 6340), (1585, 5332), (2666, 3170)]