18026820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:295

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 49710780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 251, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 502, 513, 532, 540, 570, 630, 665, 684, 753, 756, 798, 855, 945, 1004, 1026, 1140, 1197, 1255, 1260, 1330, 1506, 1596, 1710, 1757, 1890, 1995, 2052, 2259, 2394, 2510, 2565, 2660, 3012, 3420, 3514, 3591, 3765, 3780, 3990, 4518, 4769, 4788, 5020, 5130, 5271, 5985, 6777, 7028, 7182, 7530, 7980, 8785, 9036, 9538, 10260, 10542, 11295, 11970, 13554, 14307, 14364, 15060, 15813, 17570, 17955, 19076, 21084, 22590, 23845, 23940, 26355, 27108, 28614, 31626, 33383, 33885, 35140, 35910, 42921, 45180, 47439, 47690, 52710, 57228, 63252, 66766, 67770, 71535, 71820, 79065, 85842, 94878, 95380, 100149, 105420, 128763, 133532, 135540, 143070, 158130, 166915, 171684, 189756, 200298, 214605, 237195, 257526, 286140, 300447, 316260, 333830, 400596, 429210, 474390, 500745, 515052, 600894, 643815, 667660, 858420, 901341, 948780, 1001490, 1201788, 1287630, 1502235, 1802682, 2002980, 2575260, 3004470, 3605364, 4506705, 6008940, 9013410, 18026820]

約数ペア:

[(1, 18026820), (2, 9013410), (3, 6008940), (4, 4506705), (5, 3605364), (6, 3004470), (7, 2575260), (9, 2002980), (10, 1802682), (12, 1502235), (14, 1287630), (15, 1201788), (18, 1001490), (19, 948780), (20, 901341), (21, 858420), (27, 667660), (28, 643815), (30, 600894), (35, 515052), (36, 500745), (38, 474390), (42, 429210), (45, 400596), (54, 333830), (57, 316260), (60, 300447), (63, 286140), (70, 257526), (76, 237195), (84, 214605), (90, 200298), (95, 189756), (105, 171684), (108, 166915), (114, 158130), (126, 143070), (133, 135540), (135, 133532), (140, 128763), (171, 105420), (180, 100149), (189, 95380), (190, 94878), (210, 85842), (228, 79065), (251, 71820), (252, 71535), (266, 67770), (270, 66766), (285, 63252), (315, 57228), (342, 52710), (378, 47690), (380, 47439), (399, 45180), (420, 42921), (502, 35910), (513, 35140), (532, 33885), (540, 33383), (570, 31626), (630, 28614), (665, 27108), (684, 26355), (753, 23940), (756, 23845), (798, 22590), (855, 21084), (945, 19076), (1004, 17955), (1026, 17570), (1140, 15813), (1197, 15060), (1255, 14364), (1260, 14307), (1330, 13554), (1506, 11970), (1596, 11295), (1710, 10542), (1757, 10260), (1890, 9538), (1995, 9036), (2052, 8785), (2259, 7980), (2394, 7530), (2510, 7182), (2565, 7028), (2660, 6777), (3012, 5985), (3420, 5271), (3514, 5130), (3591, 5020), (3765, 4788), (3780, 4769), (3990, 4518)]