28439865

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 56908800

約数和(自身を除く): 28468935

約数列:

[1, 3, 5, 9, 15, 19, 29, 31, 37, 45, 57, 87, 93, 95, 111, 145, 155, 171, 185, 261, 279, 285, 333, 435, 465, 551, 555, 589, 703, 855, 899, 1073, 1147, 1305, 1395, 1653, 1665, 1767, 2109, 2697, 2755, 2945, 3219, 3441, 3515, 4495, 4959, 5301, 5365, 5735, 6327, 8091, 8265, 8835, 9657, 10323, 10545, 13485, 16095, 17081, 17205, 20387, 21793, 24795, 26505, 31635, 33263, 40455, 48285, 51243, 51615, 61161, 65379, 85405, 99789, 101935, 108965, 153729, 166315, 183483, 196137, 256215, 299367, 305805, 326895, 498945, 631997, 768645, 917415, 980685, 1496835, 1895991, 3159985, 5687973, 9479955, 28439865]

約数ペア:

[(1, 28439865), (3, 9479955), (5, 5687973), (9, 3159985), (15, 1895991), (19, 1496835), (29, 980685), (31, 917415), (37, 768645), (45, 631997), (57, 498945), (87, 326895), (93, 305805), (95, 299367), (111, 256215), (145, 196137), (155, 183483), (171, 166315), (185, 153729), (261, 108965), (279, 101935), (285, 99789), (333, 85405), (435, 65379), (465, 61161), (551, 51615), (555, 51243), (589, 48285), (703, 40455), (855, 33263), (899, 31635), (1073, 26505), (1147, 24795), (1305, 21793), (1395, 20387), (1653, 17205), (1665, 17081), (1767, 16095), (2109, 13485), (2697, 10545), (2755, 10323), (2945, 9657), (3219, 8835), (3441, 8265), (3515, 8091), (4495, 6327), (4959, 5735), (5301, 5365)]