20508711540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{256423}}^1$

素因数の和:256509

約数の個数: 96

約数和(自身を含む): 60655558656

約数和(自身を除く): 40146847116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 62, 86, 93, 124, 129, 155, 172, 186, 215, 258, 310, 372, 430, 465, 516, 620, 645, 860, 930, 1290, 1333, 1860, 2580, 2666, 3999, 5332, 6665, 7998, 13330, 15996, 19995, 26660, 39990, 79980, 256423, 512846, 769269, 1025692, 1282115, 1538538, 2564230, 3077076, 3846345, 5128460, 7692690, 7949113, 11026189, 15385380, 15898226, 22052378, 23847339, 31796452, 33078567, 39745565, 44104756, 47694678, 55130945, 66157134, 79491130, 95389356, 110261890, 119236695, 132314268, 158982260, 165392835, 220523780, 238473390, 330785670, 341811859, 476946780, 661571340, 683623718, 1025435577, 1367247436, 1709059295, 2050871154, 3418118590, 4101742308, 5127177885, 6836237180, 10254355770, 20508711540]

約数ペア:

[(1, 20508711540), (2, 10254355770), (3, 6836237180), (4, 5127177885), (5, 4101742308), (6, 3418118590), (10, 2050871154), (12, 1709059295), (15, 1367247436), (20, 1025435577), (30, 683623718), (31, 661571340), (43, 476946780), (60, 341811859), (62, 330785670), (86, 238473390), (93, 220523780), (124, 165392835), (129, 158982260), (155, 132314268), (172, 119236695), (186, 110261890), (215, 95389356), (258, 79491130), (310, 66157134), (372, 55130945), (430, 47694678), (465, 44104756), (516, 39745565), (620, 33078567), (645, 31796452), (860, 23847339), (930, 22052378), (1290, 15898226), (1333, 15385380), (1860, 11026189), (2580, 7949113), (2666, 7692690), (3999, 5128460), (5332, 3846345), (6665, 3077076), (7998, 2564230), (13330, 1538538), (15996, 1282115), (19995, 1025692), (26660, 769269), (39990, 512846), (79980, 256423)]