20564460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{859}}^1$

素因数の和:900

約数の個数: 144

約数和(自身を含む): 75129600

約数和(自身を除く): 54565140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 859, 1140, 1197, 1260, 1330, 1596, 1710, 1718, 1995, 2394, 2577, 2660, 3420, 3436, 3990, 4295, 4788, 5154, 5985, 6013, 7731, 7980, 8590, 10308, 11970, 12026, 12885, 15462, 16321, 17180, 18039, 23940, 24052, 25770, 30065, 30924, 32642, 36078, 38655, 48963, 51540, 54117, 60130, 65284, 72156, 77310, 81605, 90195, 97926, 108234, 114247, 120260, 146889, 154620, 163210, 180390, 195852, 216468, 228494, 244815, 270585, 293778, 326420, 342741, 360780, 456988, 489630, 541170, 571235, 587556, 685482, 734445, 979260, 1028223, 1082340, 1142470, 1370964, 1468890, 1713705, 2056446, 2284940, 2937780, 3427410, 4112892, 5141115, 6854820, 10282230, 20564460]

約数ペア:

[(1, 20564460), (2, 10282230), (3, 6854820), (4, 5141115), (5, 4112892), (6, 3427410), (7, 2937780), (9, 2284940), (10, 2056446), (12, 1713705), (14, 1468890), (15, 1370964), (18, 1142470), (19, 1082340), (20, 1028223), (21, 979260), (28, 734445), (30, 685482), (35, 587556), (36, 571235), (38, 541170), (42, 489630), (45, 456988), (57, 360780), (60, 342741), (63, 326420), (70, 293778), (76, 270585), (84, 244815), (90, 228494), (95, 216468), (105, 195852), (114, 180390), (126, 163210), (133, 154620), (140, 146889), (171, 120260), (180, 114247), (190, 108234), (210, 97926), (228, 90195), (252, 81605), (266, 77310), (285, 72156), (315, 65284), (342, 60130), (380, 54117), (399, 51540), (420, 48963), (532, 38655), (570, 36078), (630, 32642), (665, 30924), (684, 30065), (798, 25770), (855, 24052), (859, 23940), (1140, 18039), (1197, 17180), (1260, 16321), (1330, 15462), (1596, 12885), (1710, 12026), (1718, 11970), (1995, 10308), (2394, 8590), (2577, 7980), (2660, 7731), (3420, 6013), (3436, 5985), (3990, 5154), (4295, 4788)]