720037980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:736

約数の個数: 144

約数和(自身を含む): 2240469504

約数和(自身を除く): 1520431524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 103, 142, 180, 206, 213, 284, 309, 355, 412, 426, 515, 547, 618, 639, 710, 852, 927, 1030, 1065, 1094, 1236, 1278, 1420, 1545, 1641, 1854, 2060, 2130, 2188, 2556, 2735, 3090, 3195, 3282, 3708, 4260, 4635, 4923, 5470, 6180, 6390, 6564, 7313, 8205, 9270, 9846, 10940, 12780, 14626, 16410, 18540, 19692, 21939, 24615, 29252, 32820, 36565, 38837, 43878, 49230, 56341, 65817, 73130, 77674, 87756, 98460, 109695, 112682, 116511, 131634, 146260, 155348, 169023, 194185, 219390, 225364, 233022, 263268, 281705, 329085, 338046, 349533, 388370, 438780, 466044, 507069, 563410, 582555, 658170, 676092, 699066, 776740, 845115, 1014138, 1126820, 1165110, 1316340, 1398132, 1690230, 1747665, 2028276, 2330220, 2535345, 3380460, 3495330, 4000211, 5070690, 6990660, 8000422, 10141380, 12000633, 16000844, 20001055, 24001266, 36001899, 40002110, 48002532, 60003165, 72003798, 80004220, 120006330, 144007596, 180009495, 240012660, 360018990, 720037980]

約数ペア:

[(1, 720037980), (2, 360018990), (3, 240012660), (4, 180009495), (5, 144007596), (6, 120006330), (9, 80004220), (10, 72003798), (12, 60003165), (15, 48002532), (18, 40002110), (20, 36001899), (30, 24001266), (36, 20001055), (45, 16000844), (60, 12000633), (71, 10141380), (90, 8000422), (103, 6990660), (142, 5070690), (180, 4000211), (206, 3495330), (213, 3380460), (284, 2535345), (309, 2330220), (355, 2028276), (412, 1747665), (426, 1690230), (515, 1398132), (547, 1316340), (618, 1165110), (639, 1126820), (710, 1014138), (852, 845115), (927, 776740), (1030, 699066), (1065, 676092), (1094, 658170), (1236, 582555), (1278, 563410), (1420, 507069), (1545, 466044), (1641, 438780), (1854, 388370), (2060, 349533), (2130, 338046), (2188, 329085), (2556, 281705), (2735, 263268), (3090, 233022), (3195, 225364), (3282, 219390), (3708, 194185), (4260, 169023), (4635, 155348), (4923, 146260), (5470, 131634), (6180, 116511), (6390, 112682), (6564, 109695), (7313, 98460), (8205, 87756), (9270, 77674), (9846, 73130), (10940, 65817), (12780, 56341), (14626, 49230), (16410, 43878), (18540, 38837), (19692, 36565), (21939, 32820), (24615, 29252)]