31274505

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 80

約数和(自身を含む): 60217344

約数和(自身を除く): 28942839

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 47, 53, 81, 93, 135, 141, 155, 159, 235, 265, 279, 405, 423, 465, 477, 705, 795, 837, 1269, 1395, 1431, 1457, 1643, 2115, 2385, 2491, 2511, 3807, 4185, 4293, 4371, 4929, 6345, 7155, 7285, 7473, 8215, 12455, 12555, 13113, 14787, 19035, 21465, 21855, 22419, 24645, 37365, 39339, 44361, 65565, 67257, 73935, 77221, 112095, 118017, 133083, 196695, 201771, 221805, 231663, 336285, 386105, 590085, 665415, 694989, 1008855, 1158315, 2084967, 3474945, 6254901, 10424835, 31274505]

約数ペア:

[(1, 31274505), (3, 10424835), (5, 6254901), (9, 3474945), (15, 2084967), (27, 1158315), (31, 1008855), (45, 694989), (47, 665415), (53, 590085), (81, 386105), (93, 336285), (135, 231663), (141, 221805), (155, 201771), (159, 196695), (235, 133083), (265, 118017), (279, 112095), (405, 77221), (423, 73935), (465, 67257), (477, 65565), (705, 44361), (795, 39339), (837, 37365), (1269, 24645), (1395, 22419), (1431, 21855), (1457, 21465), (1643, 19035), (2115, 14787), (2385, 13113), (2491, 12555), (2511, 12455), (3807, 8215), (4185, 7473), (4293, 7285), (4371, 7155), (4929, 6345)]