21008006500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1093}}^1\times {\mathrm{2957}}^1$

素因数の和:4082

約数の個数: 96

約数和(自身を含む): 49472762976

約数和(自身を除く): 28464756476

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1093, 1300, 1625, 2186, 2957, 3250, 4372, 5465, 5914, 6500, 10930, 11828, 14209, 14785, 21860, 27325, 28418, 29570, 38441, 54650, 56836, 59140, 71045, 73925, 76882, 109300, 136625, 142090, 147850, 153764, 192205, 273250, 284180, 295700, 355225, 369625, 384410, 546500, 710450, 739250, 768820, 961025, 1420900, 1478500, 1776125, 1922050, 3232001, 3552250, 3844100, 4805125, 6464002, 7104500, 9610250, 12928004, 16160005, 19220500, 32320010, 42016013, 64640020, 80800025, 84032026, 161600050, 168064052, 210080065, 323200100, 404000125, 420160130, 808000250, 840320260, 1050400325, 1616000500, 2100800650, 4201601300, 5252001625, 10504003250, 21008006500]

約数ペア:

[(1, 21008006500), (2, 10504003250), (4, 5252001625), (5, 4201601300), (10, 2100800650), (13, 1616000500), (20, 1050400325), (25, 840320260), (26, 808000250), (50, 420160130), (52, 404000125), (65, 323200100), (100, 210080065), (125, 168064052), (130, 161600050), (250, 84032026), (260, 80800025), (325, 64640020), (500, 42016013), (650, 32320010), (1093, 19220500), (1300, 16160005), (1625, 12928004), (2186, 9610250), (2957, 7104500), (3250, 6464002), (4372, 4805125), (5465, 3844100), (5914, 3552250), (6500, 3232001), (10930, 1922050), (11828, 1776125), (14209, 1478500), (14785, 1420900), (21860, 961025), (27325, 768820), (28418, 739250), (29570, 710450), (38441, 546500), (54650, 384410), (56836, 369625), (59140, 355225), (71045, 295700), (73925, 284180), (76882, 273250), (109300, 192205), (136625, 153764), (142090, 147850)]