20010209765

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{8179}}^1$

素因数の和:8506

約数の個数: 64

約数和(自身を含む): 31222732800

約数和(自身を除く): 11212523035

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 283, 455, 665, 1235, 1415, 1729, 1981, 3679, 5377, 8179, 8645, 9905, 18395, 25753, 26885, 37639, 40895, 57253, 69901, 106327, 128765, 155401, 188195, 286265, 349505, 489307, 531635, 744289, 777005, 1087807, 2020213, 2314657, 2446535, 3721445, 5439035, 10101065, 11573285, 14141491, 16202599, 30090541, 43978483, 70707455, 81012995, 150452705, 210633787, 219892415, 307849381, 571720279, 1053168935, 1539246905, 2858601395, 4002041953, 20010209765]

約数ペア:

[(1, 20010209765), (5, 4002041953), (7, 2858601395), (13, 1539246905), (19, 1053168935), (35, 571720279), (65, 307849381), (91, 219892415), (95, 210633787), (133, 150452705), (247, 81012995), (283, 70707455), (455, 43978483), (665, 30090541), (1235, 16202599), (1415, 14141491), (1729, 11573285), (1981, 10101065), (3679, 5439035), (5377, 3721445), (8179, 2446535), (8645, 2314657), (9905, 2020213), (18395, 1087807), (25753, 777005), (26885, 744289), (37639, 531635), (40895, 489307), (57253, 349505), (69901, 286265), (106327, 188195), (128765, 155401)]