900090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 2389608

約数和(自身を除く): 1489518

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 137, 146, 219, 274, 365, 411, 438, 657, 685, 730, 822, 1095, 1233, 1314, 1370, 2055, 2190, 2466, 3285, 4110, 6165, 6570, 10001, 12330, 20002, 30003, 50005, 60006, 90009, 100010, 150015, 180018, 300030, 450045, 900090]

約数ペア:

[(1, 900090), (2, 450045), (3, 300030), (5, 180018), (6, 150015), (9, 100010), (10, 90009), (15, 60006), (18, 50005), (30, 30003), (45, 20002), (73, 12330), (90, 10001), (137, 6570), (146, 6165), (219, 4110), (274, 3285), (365, 2466), (411, 2190), (438, 2055), (657, 1370), (685, 1314), (730, 1233), (822, 1095)]