178117520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13829}}^1$

素因数の和:13872

約数の個数: 80

約数和(自身を含む): 493896960

約数和(自身を除く): 315779440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 13829, 27658, 55316, 69145, 96803, 110632, 138290, 193606, 221264, 276580, 318067, 387212, 484015, 553160, 636134, 774424, 968030, 1106320, 1272268, 1548848, 1590335, 1936060, 2226469, 2544536, 3180670, 3872120, 4452938, 5089072, 6361340, 7744240, 8905876, 11132345, 12722680, 17811752, 22264690, 25445360, 35623504, 44529380, 89058760, 178117520]

約数ペア:

[(1, 178117520), (2, 89058760), (4, 44529380), (5, 35623504), (7, 25445360), (8, 22264690), (10, 17811752), (14, 12722680), (16, 11132345), (20, 8905876), (23, 7744240), (28, 6361340), (35, 5089072), (40, 4452938), (46, 3872120), (56, 3180670), (70, 2544536), (80, 2226469), (92, 1936060), (112, 1590335), (115, 1548848), (140, 1272268), (161, 1106320), (184, 968030), (230, 774424), (280, 636134), (322, 553160), (368, 484015), (460, 387212), (560, 318067), (644, 276580), (805, 221264), (920, 193606), (1288, 138290), (1610, 110632), (1840, 96803), (2576, 69145), (3220, 55316), (6440, 27658), (12880, 13829)]