818867723920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2591}}^1\times {\mathrm{91873}}^1$

素因数の和:94520

約数の個数: 80

約数和(自身を含む): 1948916547072

約数和(自身を除く): 1130048823152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 2591, 3440, 5182, 10364, 12955, 20728, 25910, 41456, 51820, 91873, 103640, 111413, 183746, 207280, 222826, 367492, 445652, 459365, 557065, 734984, 891304, 918730, 1114130, 1469968, 1782608, 1837460, 2228260, 3674920, 3950539, 4456520, 7349840, 7901078, 8913040, 15802156, 19752695, 31604312, 39505390, 63208624, 79010780, 158021560, 238042943, 316043120, 476085886, 952171772, 1190214715, 1904343544, 2380429430, 3808687088, 4760858860, 9521717720, 10235846549, 19043435440, 20471693098, 40943386196, 51179232745, 81886772392, 102358465490, 163773544784, 204716930980, 409433861960, 818867723920]

約数ペア:

[(1, 818867723920), (2, 409433861960), (4, 204716930980), (5, 163773544784), (8, 102358465490), (10, 81886772392), (16, 51179232745), (20, 40943386196), (40, 20471693098), (43, 19043435440), (80, 10235846549), (86, 9521717720), (172, 4760858860), (215, 3808687088), (344, 2380429430), (430, 1904343544), (688, 1190214715), (860, 952171772), (1720, 476085886), (2591, 316043120), (3440, 238042943), (5182, 158021560), (10364, 79010780), (12955, 63208624), (20728, 39505390), (25910, 31604312), (41456, 19752695), (51820, 15802156), (91873, 8913040), (103640, 7901078), (111413, 7349840), (183746, 4456520), (207280, 3950539), (222826, 3674920), (367492, 2228260), (445652, 1837460), (459365, 1782608), (557065, 1469968), (734984, 1114130), (891304, 918730)]