721041648

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{1151}}^1$

素因数の和:1614

約数の個数: 80

約数和(自身を含む): 1929019392

約数和(自身を除く): 1207977744

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 248, 372, 421, 496, 744, 842, 1151, 1263, 1488, 1684, 2302, 2526, 3368, 3453, 4604, 5052, 6736, 6906, 9208, 10104, 13051, 13812, 18416, 20208, 26102, 27624, 35681, 39153, 52204, 55248, 71362, 78306, 104408, 107043, 142724, 156612, 208816, 214086, 285448, 313224, 428172, 484571, 570896, 626448, 856344, 969142, 1453713, 1712688, 1938284, 2907426, 3876568, 5814852, 7753136, 11629704, 15021701, 23259408, 30043402, 45065103, 60086804, 90130206, 120173608, 180260412, 240347216, 360520824, 721041648]

約数ペア:

[(1, 721041648), (2, 360520824), (3, 240347216), (4, 180260412), (6, 120173608), (8, 90130206), (12, 60086804), (16, 45065103), (24, 30043402), (31, 23259408), (48, 15021701), (62, 11629704), (93, 7753136), (124, 5814852), (186, 3876568), (248, 2907426), (372, 1938284), (421, 1712688), (496, 1453713), (744, 969142), (842, 856344), (1151, 626448), (1263, 570896), (1488, 484571), (1684, 428172), (2302, 313224), (2526, 285448), (3368, 214086), (3453, 208816), (4604, 156612), (5052, 142724), (6736, 107043), (6906, 104408), (9208, 78306), (10104, 71362), (13051, 55248), (13812, 52204), (18416, 39153), (20208, 35681), (26102, 27624)]