131243728

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{347}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 318979584

約数和(自身を除く): 187735856

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 307, 308, 347, 614, 616, 694, 1228, 1232, 1388, 2149, 2429, 2456, 2776, 3377, 3817, 4298, 4858, 4912, 5552, 6754, 7634, 8596, 9716, 13508, 15268, 17192, 19432, 23639, 26719, 27016, 30536, 34384, 38864, 47278, 53438, 54032, 61072, 94556, 106529, 106876, 189112, 213058, 213752, 378224, 426116, 427504, 745703, 852232, 1171819, 1491406, 1704464, 2343638, 2982812, 4687276, 5965624, 8202733, 9374552, 11931248, 16405466, 18749104, 32810932, 65621864, 131243728]

約数ペア:

[(1, 131243728), (2, 65621864), (4, 32810932), (7, 18749104), (8, 16405466), (11, 11931248), (14, 9374552), (16, 8202733), (22, 5965624), (28, 4687276), (44, 2982812), (56, 2343638), (77, 1704464), (88, 1491406), (112, 1171819), (154, 852232), (176, 745703), (307, 427504), (308, 426116), (347, 378224), (614, 213752), (616, 213058), (694, 189112), (1228, 106876), (1232, 106529), (1388, 94556), (2149, 61072), (2429, 54032), (2456, 53438), (2776, 47278), (3377, 38864), (3817, 34384), (4298, 30536), (4858, 27016), (4912, 26719), (5552, 23639), (6754, 19432), (7634, 17192), (8596, 15268), (9716, 13508)]