18123720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7949}}^1$

素因数の和:7982

約数の個数: 64

約数和(自身を含む): 57240000

約数和(自身を除く): 39116280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 7949, 15898, 23847, 31796, 39745, 47694, 63592, 79490, 95388, 119235, 151031, 158980, 190776, 238470, 302062, 317960, 453093, 476940, 604124, 755155, 906186, 953880, 1208248, 1510310, 1812372, 2265465, 3020620, 3624744, 4530930, 6041240, 9061860, 18123720]

約数ペア:

[(1, 18123720), (2, 9061860), (3, 6041240), (4, 4530930), (5, 3624744), (6, 3020620), (8, 2265465), (10, 1812372), (12, 1510310), (15, 1208248), (19, 953880), (20, 906186), (24, 755155), (30, 604124), (38, 476940), (40, 453093), (57, 317960), (60, 302062), (76, 238470), (95, 190776), (114, 158980), (120, 151031), (152, 119235), (190, 95388), (228, 79490), (285, 63592), (380, 47694), (456, 39745), (570, 31796), (760, 23847), (1140, 15898), (2280, 7949)]