921636820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{3943}}^1$

素因数の和:4025

約数の個数: 96

約数和(自身を含む): 2226309120

約数和(自身を除く): 1304672300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 31, 52, 58, 62, 65, 116, 124, 130, 145, 155, 260, 290, 310, 377, 403, 580, 620, 754, 806, 899, 1508, 1612, 1798, 1885, 2015, 3596, 3770, 3943, 4030, 4495, 7540, 7886, 8060, 8990, 11687, 15772, 17980, 19715, 23374, 39430, 46748, 51259, 58435, 78860, 102518, 114347, 116870, 122233, 205036, 228694, 233740, 244466, 256295, 457388, 488932, 512590, 571735, 611165, 1025180, 1143470, 1222330, 1486511, 1589029, 2286940, 2444660, 2973022, 3178058, 3544757, 5946044, 6356116, 7089514, 7432555, 7945145, 14179028, 14865110, 15890290, 17723785, 29730220, 31780580, 35447570, 46081841, 70895140, 92163682, 184327364, 230409205, 460818410, 921636820]

約数ペア:

[(1, 921636820), (2, 460818410), (4, 230409205), (5, 184327364), (10, 92163682), (13, 70895140), (20, 46081841), (26, 35447570), (29, 31780580), (31, 29730220), (52, 17723785), (58, 15890290), (62, 14865110), (65, 14179028), (116, 7945145), (124, 7432555), (130, 7089514), (145, 6356116), (155, 5946044), (260, 3544757), (290, 3178058), (310, 2973022), (377, 2444660), (403, 2286940), (580, 1589029), (620, 1486511), (754, 1222330), (806, 1143470), (899, 1025180), (1508, 611165), (1612, 571735), (1798, 512590), (1885, 488932), (2015, 457388), (3596, 256295), (3770, 244466), (3943, 233740), (4030, 228694), (4495, 205036), (7540, 122233), (7886, 116870), (8060, 114347), (8990, 102518), (11687, 78860), (15772, 58435), (17980, 51259), (19715, 46748), (23374, 39430)]