20199503948

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{13751}}^1$

素因数の和:13875

約数の個数: 72

約数和(自身を含む): 39953795616

約数和(自身を除く): 19754291668

約数列:

[1, 2, 4, 13, 26, 41, 52, 53, 82, 106, 164, 169, 212, 338, 533, 676, 689, 1066, 1378, 2132, 2173, 2756, 4346, 6929, 8692, 8957, 13751, 13858, 17914, 27502, 27716, 28249, 35828, 55004, 56498, 112996, 178763, 357526, 367237, 563791, 715052, 728803, 734474, 1127582, 1457606, 1468948, 2255164, 2323919, 2915212, 4647838, 7329283, 9295676, 9474439, 14658566, 18948878, 29317132, 29880923, 37897756, 59761846, 95280679, 119523692, 123167707, 190561358, 246335414, 381122716, 388451999, 492670828, 776903998, 1553807996, 5049875987, 10099751974, 20199503948]

約数ペア:

[(1, 20199503948), (2, 10099751974), (4, 5049875987), (13, 1553807996), (26, 776903998), (41, 492670828), (52, 388451999), (53, 381122716), (82, 246335414), (106, 190561358), (164, 123167707), (169, 119523692), (212, 95280679), (338, 59761846), (533, 37897756), (676, 29880923), (689, 29317132), (1066, 18948878), (1378, 14658566), (2132, 9474439), (2173, 9295676), (2756, 7329283), (4346, 4647838), (6929, 2915212), (8692, 2323919), (8957, 2255164), (13751, 1468948), (13858, 1457606), (17914, 1127582), (27502, 734474), (27716, 728803), (28249, 715052), (35828, 563791), (55004, 367237), (56498, 357526), (112996, 178763)]