256500180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{8237}}^1$

素因数の和:8425

約数の個数: 72

約数和(自身を含む): 782642952

約数和(自身を除く): 526142772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 692, 865, 1038, 1557, 1730, 2076, 2595, 3114, 3460, 5190, 6228, 7785, 8237, 10380, 15570, 16474, 24711, 31140, 32948, 41185, 49422, 74133, 82370, 98844, 123555, 148266, 164740, 247110, 296532, 370665, 494220, 741330, 1425001, 1482660, 2850002, 4275003, 5700004, 7125005, 8550006, 12825009, 14250010, 17100012, 21375015, 25650018, 28500020, 42750030, 51300036, 64125045, 85500060, 128250090, 256500180]

約数ペア:

[(1, 256500180), (2, 128250090), (3, 85500060), (4, 64125045), (5, 51300036), (6, 42750030), (9, 28500020), (10, 25650018), (12, 21375015), (15, 17100012), (18, 14250010), (20, 12825009), (30, 8550006), (36, 7125005), (45, 5700004), (60, 4275003), (90, 2850002), (173, 1482660), (180, 1425001), (346, 741330), (519, 494220), (692, 370665), (865, 296532), (1038, 247110), (1557, 164740), (1730, 148266), (2076, 123555), (2595, 98844), (3114, 82370), (3460, 74133), (5190, 49422), (6228, 41185), (7785, 32948), (8237, 31140), (10380, 24711), (15570, 16474)]