80777725

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 126206208

約数和(自身を除く): 45428483

約数列:

[1, 5, 7, 23, 25, 35, 47, 49, 61, 115, 161, 175, 235, 245, 305, 329, 427, 575, 805, 1081, 1127, 1175, 1225, 1403, 1525, 1645, 2135, 2303, 2867, 2989, 4025, 5405, 5635, 7015, 7567, 8225, 9821, 10675, 11515, 14335, 14945, 20069, 27025, 28175, 35075, 37835, 49105, 52969, 57575, 65941, 68747, 71675, 74725, 100345, 140483, 189175, 245525, 264845, 329705, 343735, 461587, 501725, 702415, 1324225, 1648525, 1718675, 2307935, 3231109, 3512075, 11539675, 16155545, 80777725]

約数ペア:

[(1, 80777725), (5, 16155545), (7, 11539675), (23, 3512075), (25, 3231109), (35, 2307935), (47, 1718675), (49, 1648525), (61, 1324225), (115, 702415), (161, 501725), (175, 461587), (235, 343735), (245, 329705), (305, 264845), (329, 245525), (427, 189175), (575, 140483), (805, 100345), (1081, 74725), (1127, 71675), (1175, 68747), (1225, 65941), (1403, 57575), (1525, 52969), (1645, 49105), (2135, 37835), (2303, 35075), (2867, 28175), (2989, 27025), (4025, 20069), (5405, 14945), (5635, 14335), (7015, 11515), (7567, 10675), (8225, 9821)]