491400580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:565

約数の個数: 96

約数和(自身を含む): 1163901312

約数和(自身を除く): 672500732

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 157, 164, 205, 220, 314, 347, 410, 451, 628, 694, 785, 820, 902, 1388, 1570, 1727, 1735, 1804, 2255, 3140, 3454, 3470, 3817, 4510, 6437, 6908, 6940, 7634, 8635, 9020, 12874, 14227, 15268, 17270, 19085, 25748, 28454, 32185, 34540, 38170, 54479, 56908, 64370, 70807, 71135, 76340, 108958, 128740, 141614, 142270, 156497, 217916, 272395, 283228, 284540, 312994, 354035, 544790, 599269, 625988, 708070, 782485, 1089580, 1198538, 1416140, 1564970, 2233639, 2397076, 2996345, 3129940, 4467278, 5992690, 8934556, 11168195, 11985380, 22336390, 24570029, 44672780, 49140058, 98280116, 122850145, 245700290, 491400580]

約数ペア:

[(1, 491400580), (2, 245700290), (4, 122850145), (5, 98280116), (10, 49140058), (11, 44672780), (20, 24570029), (22, 22336390), (41, 11985380), (44, 11168195), (55, 8934556), (82, 5992690), (110, 4467278), (157, 3129940), (164, 2996345), (205, 2397076), (220, 2233639), (314, 1564970), (347, 1416140), (410, 1198538), (451, 1089580), (628, 782485), (694, 708070), (785, 625988), (820, 599269), (902, 544790), (1388, 354035), (1570, 312994), (1727, 284540), (1735, 283228), (1804, 272395), (2255, 217916), (3140, 156497), (3454, 142270), (3470, 141614), (3817, 128740), (4510, 108958), (6437, 76340), (6908, 71135), (6940, 70807), (7634, 64370), (8635, 56908), (9020, 54479), (12874, 38170), (14227, 34540), (15268, 32185), (17270, 28454), (19085, 25748)]