18862725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 39362560

約数和(自身を除く): 20499835

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 31, 35, 57, 61, 75, 93, 95, 105, 133, 155, 175, 183, 217, 285, 305, 399, 427, 465, 475, 525, 589, 651, 665, 775, 915, 1085, 1159, 1281, 1425, 1525, 1767, 1891, 1995, 2135, 2325, 2945, 3255, 3325, 3477, 4123, 4575, 5425, 5673, 5795, 6405, 8113, 8835, 9455, 9975, 10675, 12369, 13237, 14725, 16275, 17385, 20615, 24339, 28365, 28975, 32025, 35929, 39711, 40565, 44175, 47275, 61845, 66185, 86925, 103075, 107787, 121695, 141825, 179645, 198555, 202825, 251503, 309225, 330925, 538935, 608475, 754509, 898225, 992775, 1257515, 2694675, 3772545, 6287575, 18862725]

約数ペア:

[(1, 18862725), (3, 6287575), (5, 3772545), (7, 2694675), (15, 1257515), (19, 992775), (21, 898225), (25, 754509), (31, 608475), (35, 538935), (57, 330925), (61, 309225), (75, 251503), (93, 202825), (95, 198555), (105, 179645), (133, 141825), (155, 121695), (175, 107787), (183, 103075), (217, 86925), (285, 66185), (305, 61845), (399, 47275), (427, 44175), (465, 40565), (475, 39711), (525, 35929), (589, 32025), (651, 28975), (665, 28365), (775, 24339), (915, 20615), (1085, 17385), (1159, 16275), (1281, 14725), (1425, 13237), (1525, 12369), (1767, 10675), (1891, 9975), (1995, 9455), (2135, 8835), (2325, 8113), (2945, 6405), (3255, 5795), (3325, 5673), (3477, 5425), (4123, 4575)]