80920580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 186769800

約数和(自身を除く): 105849220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 169, 178, 260, 269, 338, 356, 445, 538, 676, 845, 890, 1076, 1157, 1345, 1690, 1780, 2314, 2690, 3380, 3497, 4628, 5380, 5785, 6994, 11570, 13988, 15041, 17485, 23140, 23941, 30082, 34970, 45461, 47882, 60164, 69940, 75205, 90922, 95764, 119705, 150410, 181844, 227305, 239410, 300820, 311233, 454610, 478820, 622466, 909220, 1244932, 1556165, 3112330, 4046029, 6224660, 8092058, 16184116, 20230145, 40460290, 80920580]

約数ペア:

[(1, 80920580), (2, 40460290), (4, 20230145), (5, 16184116), (10, 8092058), (13, 6224660), (20, 4046029), (26, 3112330), (52, 1556165), (65, 1244932), (89, 909220), (130, 622466), (169, 478820), (178, 454610), (260, 311233), (269, 300820), (338, 239410), (356, 227305), (445, 181844), (538, 150410), (676, 119705), (845, 95764), (890, 90922), (1076, 75205), (1157, 69940), (1345, 60164), (1690, 47882), (1780, 45461), (2314, 34970), (2690, 30082), (3380, 23941), (3497, 23140), (4628, 17485), (5380, 15041), (5785, 13988), (6994, 11570)]