20240985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 16623015

約数列:

[1, 3, 5, 15, 19, 29, 31, 57, 79, 87, 93, 95, 145, 155, 237, 285, 395, 435, 465, 551, 589, 899, 1185, 1501, 1653, 1767, 2291, 2449, 2697, 2755, 2945, 4495, 4503, 6873, 7347, 7505, 8265, 8835, 11455, 12245, 13485, 17081, 22515, 34365, 36735, 43529, 46531, 51243, 71021, 85405, 130587, 139593, 213063, 217645, 232655, 256215, 355105, 652935, 697965, 1065315, 1349399, 4048197, 6746995, 20240985]

約数ペア:

[(1, 20240985), (3, 6746995), (5, 4048197), (15, 1349399), (19, 1065315), (29, 697965), (31, 652935), (57, 355105), (79, 256215), (87, 232655), (93, 217645), (95, 213063), (145, 139593), (155, 130587), (237, 85405), (285, 71021), (395, 51243), (435, 46531), (465, 43529), (551, 36735), (589, 34365), (899, 22515), (1185, 17081), (1501, 13485), (1653, 12245), (1767, 11455), (2291, 8835), (2449, 8265), (2697, 7505), (2755, 7347), (2945, 6873), (4495, 4503)]