1401473840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{20113}}^1$

素因数の和:20206

約数の個数: 80

約数和(自身を含む): 3561626208

約数和(自身を除く): 2160152368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 1040, 1072, 1340, 1742, 2680, 3484, 4355, 5360, 6968, 8710, 13936, 17420, 20113, 34840, 40226, 69680, 80452, 100565, 160904, 201130, 261469, 321808, 402260, 522938, 804520, 1045876, 1307345, 1347571, 1609040, 2091752, 2614690, 2695142, 4183504, 5229380, 5390284, 6737855, 10458760, 10780568, 13475710, 17518423, 20917520, 21561136, 26951420, 35036846, 53902840, 70073692, 87592115, 107805680, 140147384, 175184230, 280294768, 350368460, 700736920, 1401473840]

約数ペア:

[(1, 1401473840), (2, 700736920), (4, 350368460), (5, 280294768), (8, 175184230), (10, 140147384), (13, 107805680), (16, 87592115), (20, 70073692), (26, 53902840), (40, 35036846), (52, 26951420), (65, 21561136), (67, 20917520), (80, 17518423), (104, 13475710), (130, 10780568), (134, 10458760), (208, 6737855), (260, 5390284), (268, 5229380), (335, 4183504), (520, 2695142), (536, 2614690), (670, 2091752), (871, 1609040), (1040, 1347571), (1072, 1307345), (1340, 1045876), (1742, 804520), (2680, 522938), (3484, 402260), (4355, 321808), (5360, 261469), (6968, 201130), (8710, 160904), (13936, 100565), (17420, 80452), (20113, 69680), (34840, 40226)]