28782975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 52309152

約数和(自身を除く): 23526177

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 75, 159, 195, 265, 325, 557, 689, 795, 975, 1325, 1671, 2067, 2785, 3445, 3975, 7241, 8355, 10335, 13925, 17225, 21723, 29521, 36205, 41775, 51675, 88563, 108615, 147605, 181025, 383773, 442815, 543075, 738025, 1151319, 1918865, 2214075, 5756595, 9594325, 28782975]

約数ペア:

[(1, 28782975), (3, 9594325), (5, 5756595), (13, 2214075), (15, 1918865), (25, 1151319), (39, 738025), (53, 543075), (65, 442815), (75, 383773), (159, 181025), (195, 147605), (265, 108615), (325, 88563), (557, 51675), (689, 41775), (795, 36205), (975, 29521), (1325, 21723), (1671, 17225), (2067, 13925), (2785, 10335), (3445, 8355), (3975, 7241)]