405445280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1901}}^1$

素因数の和:1990

約数の個数: 96

約数和(自身を含む): 1012290048

約数和(自身を除く): 606844768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 80, 86, 124, 155, 160, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 992, 1240, 1333, 1376, 1720, 1901, 2480, 2666, 3440, 3802, 4960, 5332, 6665, 6880, 7604, 9505, 10664, 13330, 15208, 19010, 21328, 26660, 30416, 38020, 42656, 53320, 58931, 60832, 76040, 81743, 106640, 117862, 152080, 163486, 213280, 235724, 294655, 304160, 326972, 408715, 471448, 589310, 653944, 817430, 942896, 1178620, 1307888, 1634860, 1885792, 2357240, 2534033, 2615776, 3269720, 4714480, 5068066, 6539440, 9428960, 10136132, 12670165, 13078880, 20272264, 25340330, 40544528, 50680660, 81089056, 101361320, 202722640, 405445280]

約数ペア:

[(1, 405445280), (2, 202722640), (4, 101361320), (5, 81089056), (8, 50680660), (10, 40544528), (16, 25340330), (20, 20272264), (31, 13078880), (32, 12670165), (40, 10136132), (43, 9428960), (62, 6539440), (80, 5068066), (86, 4714480), (124, 3269720), (155, 2615776), (160, 2534033), (172, 2357240), (215, 1885792), (248, 1634860), (310, 1307888), (344, 1178620), (430, 942896), (496, 817430), (620, 653944), (688, 589310), (860, 471448), (992, 408715), (1240, 326972), (1333, 304160), (1376, 294655), (1720, 235724), (1901, 213280), (2480, 163486), (2666, 152080), (3440, 117862), (3802, 106640), (4960, 81743), (5332, 76040), (6665, 60832), (6880, 58931), (7604, 53320), (9505, 42656), (10664, 38020), (13330, 30416), (15208, 26660), (19010, 21328)]