78777075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1879}}^1$

素因数の和:1948

約数の個数: 48

約数和(自身を含む): 143601920

約数和(自身を除く): 64824845

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 325, 559, 645, 975, 1075, 1677, 1879, 2795, 3225, 5637, 8385, 9395, 13975, 24427, 28185, 41925, 46975, 73281, 80797, 122135, 140925, 242391, 366405, 403985, 610675, 1050361, 1211955, 1832025, 2019925, 3151083, 5251805, 6059775, 15755415, 26259025, 78777075]

約数ペア:

[(1, 78777075), (3, 26259025), (5, 15755415), (13, 6059775), (15, 5251805), (25, 3151083), (39, 2019925), (43, 1832025), (65, 1211955), (75, 1050361), (129, 610675), (195, 403985), (215, 366405), (325, 242391), (559, 140925), (645, 122135), (975, 80797), (1075, 73281), (1677, 46975), (1879, 41925), (2795, 28185), (3225, 24427), (5637, 13975), (8385, 9395)]