666940448

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{811}}^1\times {\mathrm{829}}^1$

素因数の和:1681

約数の個数: 48

約数和(自身を含む): 1358703360

約数和(自身を除く): 691762912

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 811, 829, 992, 1622, 1658, 3244, 3316, 6488, 6632, 12976, 13264, 25141, 25699, 25952, 26528, 50282, 51398, 100564, 102796, 201128, 205592, 402256, 411184, 672319, 804512, 822368, 1344638, 2689276, 5378552, 10757104, 20841889, 21514208, 41683778, 83367556, 166735112, 333470224, 666940448]

約数ペア:

[(1, 666940448), (2, 333470224), (4, 166735112), (8, 83367556), (16, 41683778), (31, 21514208), (32, 20841889), (62, 10757104), (124, 5378552), (248, 2689276), (496, 1344638), (811, 822368), (829, 804512), (992, 672319), (1622, 411184), (1658, 402256), (3244, 205592), (3316, 201128), (6488, 102796), (6632, 100564), (12976, 51398), (13264, 50282), (25141, 26528), (25699, 25952)]