1800180

素因数分解:

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

素因数の和:225

約数の個数: 72

約数和(自身を含む): 5575752

約数和(自身を除く): 3775572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 137, 146, 180, 219, 274, 292, 365, 411, 438, 548, 657, 685, 730, 822, 876, 1095, 1233, 1314, 1370, 1460, 1644, 2055, 2190, 2466, 2628, 2740, 3285, 4110, 4380, 4932, 6165, 6570, 8220, 10001, 12330, 13140, 20002, 24660, 30003, 40004, 50005, 60006, 90009, 100010, 120012, 150015, 180018, 200020, 300030, 360036, 450045, 600060, 900090, 1800180]

約数ペア:

[(1, 1800180), (2, 900090), (3, 600060), (4, 450045), (5, 360036), (6, 300030), (9, 200020), (10, 180018), (12, 150015), (15, 120012), (18, 100010), (20, 90009), (30, 60006), (36, 50005), (45, 40004), (60, 30003), (73, 24660), (90, 20002), (137, 13140), (146, 12330), (180, 10001), (219, 8220), (274, 6570), (292, 6165), (365, 4932), (411, 4380), (438, 4110), (548, 3285), (657, 2740), (685, 2628), (730, 2466), (822, 2190), (876, 2055), (1095, 1644), (1233, 1460), (1314, 1370)]