15895480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 37713600

約数和(自身を除く): 21818120

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 193, 232, 284, 290, 355, 386, 568, 580, 710, 772, 965, 1160, 1420, 1544, 1930, 2059, 2840, 3860, 4118, 5597, 7720, 8236, 10295, 11194, 13703, 16472, 20590, 22388, 27406, 27985, 41180, 44776, 54812, 55970, 68515, 82360, 109624, 111940, 137030, 223880, 274060, 397387, 548120, 794774, 1589548, 1986935, 3179096, 3973870, 7947740, 15895480]

約数ペア:

[(1, 15895480), (2, 7947740), (4, 3973870), (5, 3179096), (8, 1986935), (10, 1589548), (20, 794774), (29, 548120), (40, 397387), (58, 274060), (71, 223880), (116, 137030), (142, 111940), (145, 109624), (193, 82360), (232, 68515), (284, 55970), (290, 54812), (355, 44776), (386, 41180), (568, 27985), (580, 27406), (710, 22388), (772, 20590), (965, 16472), (1160, 13703), (1420, 11194), (1544, 10295), (1930, 8236), (2059, 7720), (2840, 5597), (3860, 4118)]