20187124490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1\times {\mathrm{7907}}^1$

素因数の和:8447

約数の個数: 64

約数和(自身を含む): 40175170560

約数和(自身を除く): 19988046070

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 479, 533, 958, 1066, 2395, 2665, 4790, 5330, 6227, 7907, 12454, 15814, 19639, 31135, 39278, 39535, 62270, 79070, 98195, 102791, 196390, 205582, 255307, 324187, 510614, 513955, 648374, 1027910, 1276535, 1620935, 2553070, 3241870, 3787453, 4214431, 7574906, 8428862, 18937265, 21072155, 37874530, 42144310, 49236889, 98473778, 155285573, 246184445, 310571146, 492368890, 776427865, 1552855730, 2018712449, 4037424898, 10093562245, 20187124490]

約数ペア:

[(1, 20187124490), (2, 10093562245), (5, 4037424898), (10, 2018712449), (13, 1552855730), (26, 776427865), (41, 492368890), (65, 310571146), (82, 246184445), (130, 155285573), (205, 98473778), (410, 49236889), (479, 42144310), (533, 37874530), (958, 21072155), (1066, 18937265), (2395, 8428862), (2665, 7574906), (4790, 4214431), (5330, 3787453), (6227, 3241870), (7907, 2553070), (12454, 1620935), (15814, 1276535), (19639, 1027910), (31135, 648374), (39278, 513955), (39535, 510614), (62270, 324187), (79070, 255307), (98195, 205582), (102791, 196390)]