720069980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{643}}^1$

素因数の和:1099

約数の個数: 96

約数和(自身を含む): 1826280960

約数和(自身を除く): 1106210980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 421, 532, 643, 665, 842, 1286, 1330, 1684, 2105, 2572, 2660, 2947, 3215, 4210, 4501, 5894, 6430, 7999, 8420, 9002, 11788, 12217, 12860, 14735, 15998, 18004, 22505, 24434, 29470, 31996, 39995, 45010, 48868, 55993, 58940, 61085, 79990, 85519, 90020, 111986, 122170, 159980, 171038, 223972, 244340, 270703, 279965, 342076, 427595, 541406, 559930, 855190, 1082812, 1119860, 1353515, 1710380, 1894921, 2707030, 3789842, 5143357, 5414060, 7579684, 9474605, 10286714, 18949210, 20573428, 25716785, 36003499, 37898420, 51433570, 72006998, 102867140, 144013996, 180017495, 360034990, 720069980]

約数ペア:

[(1, 720069980), (2, 360034990), (4, 180017495), (5, 144013996), (7, 102867140), (10, 72006998), (14, 51433570), (19, 37898420), (20, 36003499), (28, 25716785), (35, 20573428), (38, 18949210), (70, 10286714), (76, 9474605), (95, 7579684), (133, 5414060), (140, 5143357), (190, 3789842), (266, 2707030), (380, 1894921), (421, 1710380), (532, 1353515), (643, 1119860), (665, 1082812), (842, 855190), (1286, 559930), (1330, 541406), (1684, 427595), (2105, 342076), (2572, 279965), (2660, 270703), (2947, 244340), (3215, 223972), (4210, 171038), (4501, 159980), (5894, 122170), (6430, 111986), (7999, 90020), (8420, 85519), (9002, 79990), (11788, 61085), (12217, 58940), (12860, 55993), (14735, 48868), (15998, 45010), (18004, 39995), (22505, 31996), (24434, 29470)]