18686025

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 38092800

約数和(自身を除く): 19406775

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 31, 45, 47, 57, 75, 93, 95, 135, 141, 155, 171, 225, 235, 279, 285, 423, 465, 475, 513, 589, 675, 705, 775, 837, 855, 893, 1175, 1269, 1395, 1425, 1457, 1767, 2115, 2325, 2565, 2679, 2945, 3525, 4185, 4275, 4371, 4465, 5301, 6345, 6975, 7285, 8037, 8835, 10575, 12825, 13113, 13395, 14725, 15903, 20925, 21855, 22325, 24111, 26505, 27683, 31725, 36425, 39339, 40185, 44175, 65565, 66975, 79515, 83049, 109275, 120555, 132525, 138415, 196695, 200925, 249147, 327825, 397575, 415245, 602775, 692075, 747441, 983475, 1245735, 2076225, 3737205, 6228675, 18686025]

約数ペア:

[(1, 18686025), (3, 6228675), (5, 3737205), (9, 2076225), (15, 1245735), (19, 983475), (25, 747441), (27, 692075), (31, 602775), (45, 415245), (47, 397575), (57, 327825), (75, 249147), (93, 200925), (95, 196695), (135, 138415), (141, 132525), (155, 120555), (171, 109275), (225, 83049), (235, 79515), (279, 66975), (285, 65565), (423, 44175), (465, 40185), (475, 39339), (513, 36425), (589, 31725), (675, 27683), (705, 26505), (775, 24111), (837, 22325), (855, 21855), (893, 20925), (1175, 15903), (1269, 14725), (1395, 13395), (1425, 13113), (1457, 12825), (1767, 10575), (2115, 8835), (2325, 8037), (2565, 7285), (2679, 6975), (2945, 6345), (3525, 5301), (4185, 4465), (4275, 4371)]