18457075

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 30675120

約数和(自身を除く): 12218045

約数列:

[1, 5, 7, 13, 19, 25, 35, 49, 61, 65, 91, 95, 133, 175, 245, 247, 305, 325, 427, 455, 475, 637, 665, 793, 931, 1159, 1225, 1235, 1525, 1729, 2135, 2275, 2989, 3185, 3325, 3965, 4655, 5551, 5795, 6175, 8113, 8645, 10675, 12103, 14945, 15067, 15925, 19825, 23275, 27755, 28975, 38857, 40565, 43225, 56791, 60515, 74725, 75335, 105469, 138775, 194285, 202825, 283955, 302575, 376675, 527345, 738283, 971425, 1419775, 2636725, 3691415, 18457075]

約数ペア:

[(1, 18457075), (5, 3691415), (7, 2636725), (13, 1419775), (19, 971425), (25, 738283), (35, 527345), (49, 376675), (61, 302575), (65, 283955), (91, 202825), (95, 194285), (133, 138775), (175, 105469), (245, 75335), (247, 74725), (305, 60515), (325, 56791), (427, 43225), (455, 40565), (475, 38857), (637, 28975), (665, 27755), (793, 23275), (931, 19825), (1159, 15925), (1225, 15067), (1235, 14945), (1525, 12103), (1729, 10675), (2135, 8645), (2275, 8113), (2989, 6175), (3185, 5795), (3325, 5551), (3965, 4655)]