643288295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 901393920

約数和(自身を除く): 258105625

約数列:

[1, 5, 13, 29, 47, 53, 65, 137, 145, 235, 265, 377, 611, 685, 689, 1363, 1537, 1781, 1885, 2491, 3055, 3445, 3973, 6439, 6815, 7261, 7685, 8905, 12455, 17719, 19865, 19981, 32195, 32383, 36305, 51649, 72239, 83707, 88595, 94393, 99905, 161915, 186731, 210569, 258245, 341267, 361195, 418535, 471965, 933655, 939107, 1052845, 1706335, 2427503, 2737397, 4436471, 4695535, 9896743, 12137515, 13686985, 22182355, 49483715, 128657659, 643288295]

約数ペア:

[(1, 643288295), (5, 128657659), (13, 49483715), (29, 22182355), (47, 13686985), (53, 12137515), (65, 9896743), (137, 4695535), (145, 4436471), (235, 2737397), (265, 2427503), (377, 1706335), (611, 1052845), (685, 939107), (689, 933655), (1363, 471965), (1537, 418535), (1781, 361195), (1885, 341267), (2491, 258245), (3055, 210569), (3445, 186731), (3973, 161915), (6439, 99905), (6815, 94393), (7261, 88595), (7685, 83707), (8905, 72239), (12455, 51649), (17719, 36305), (19865, 32383), (19981, 32195)]