678698025

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{389}}^1\times {\mathrm{541}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 1153289280

約数和(自身を除く): 474591255

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 389, 541, 645, 1075, 1167, 1623, 1945, 2705, 3225, 5835, 8115, 9725, 13525, 16727, 23263, 29175, 40575, 50181, 69789, 83635, 116315, 210449, 250905, 348945, 418175, 581575, 631347, 1052245, 1254525, 1744725, 3156735, 5261225, 9049307, 15783675, 27147921, 45246535, 135739605, 226232675, 678698025]

約数ペア:

[(1, 678698025), (3, 226232675), (5, 135739605), (15, 45246535), (25, 27147921), (43, 15783675), (75, 9049307), (129, 5261225), (215, 3156735), (389, 1744725), (541, 1254525), (645, 1052245), (1075, 631347), (1167, 581575), (1623, 418175), (1945, 348945), (2705, 250905), (3225, 210449), (5835, 116315), (8115, 83635), (9725, 69789), (13525, 50181), (16727, 40575), (23263, 29175)]