256023180

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:346

約数の個数: 240

約数和(自身を含む): 930859776

約数和(自身を除く): 674836596

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 107, 108, 126, 135, 140, 162, 180, 189, 210, 211, 214, 252, 270, 315, 321, 324, 378, 405, 420, 422, 428, 535, 540, 567, 630, 633, 642, 749, 756, 810, 844, 945, 963, 1055, 1070, 1134, 1260, 1266, 1284, 1477, 1498, 1605, 1620, 1890, 1899, 1926, 2110, 2140, 2247, 2268, 2532, 2835, 2889, 2954, 2996, 3165, 3210, 3745, 3780, 3798, 3852, 4220, 4431, 4494, 4815, 5670, 5697, 5778, 5908, 6330, 6420, 6741, 7385, 7490, 7596, 8667, 8862, 8988, 9495, 9630, 11235, 11340, 11394, 11556, 12660, 13293, 13482, 14445, 14770, 14980, 17091, 17334, 17724, 18990, 19260, 20223, 22155, 22470, 22577, 22788, 26586, 26964, 28485, 28890, 29540, 33705, 34182, 34668, 37980, 39879, 40446, 43335, 44310, 44940, 45154, 53172, 56970, 57780, 60669, 66465, 67410, 67731, 68364, 79758, 80892, 85455, 86670, 88620, 90308, 101115, 112885, 113940, 119637, 121338, 132930, 134820, 135462, 158039, 159516, 170910, 173340, 199395, 202230, 203193, 225770, 239274, 242676, 265860, 270924, 303345, 316078, 338655, 341820, 398790, 404460, 406386, 451540, 474117, 478548, 598185, 606690, 609579, 632156, 677310, 790195, 797580, 812772, 948234, 1015965, 1196370, 1213380, 1219158, 1354620, 1422351, 1580390, 1828737, 1896468, 2031930, 2370585, 2392740, 2438316, 2844702, 3047895, 3160780, 3657474, 4063860, 4267053, 4741170, 5689404, 6095790, 7111755, 7314948, 8534106, 9143685, 9482340, 12191580, 12801159, 14223510, 17068212, 18287370, 21335265, 25602318, 28447020, 36574740, 42670530, 51204636, 64005795, 85341060, 128011590, 256023180]

約数ペア:

[(1, 256023180), (2, 128011590), (3, 85341060), (4, 64005795), (5, 51204636), (6, 42670530), (7, 36574740), (9, 28447020), (10, 25602318), (12, 21335265), (14, 18287370), (15, 17068212), (18, 14223510), (20, 12801159), (21, 12191580), (27, 9482340), (28, 9143685), (30, 8534106), (35, 7314948), (36, 7111755), (42, 6095790), (45, 5689404), (54, 4741170), (60, 4267053), (63, 4063860), (70, 3657474), (81, 3160780), (84, 3047895), (90, 2844702), (105, 2438316), (107, 2392740), (108, 2370585), (126, 2031930), (135, 1896468), (140, 1828737), (162, 1580390), (180, 1422351), (189, 1354620), (210, 1219158), (211, 1213380), (214, 1196370), (252, 1015965), (270, 948234), (315, 812772), (321, 797580), (324, 790195), (378, 677310), (405, 632156), (420, 609579), (422, 606690), (428, 598185), (535, 478548), (540, 474117), (567, 451540), (630, 406386), (633, 404460), (642, 398790), (749, 341820), (756, 338655), (810, 316078), (844, 303345), (945, 270924), (963, 265860), (1055, 242676), (1070, 239274), (1134, 225770), (1260, 203193), (1266, 202230), (1284, 199395), (1477, 173340), (1498, 170910), (1605, 159516), (1620, 158039), (1890, 135462), (1899, 134820), (1926, 132930), (2110, 121338), (2140, 119637), (2247, 113940), (2268, 112885), (2532, 101115), (2835, 90308), (2889, 88620), (2954, 86670), (2996, 85455), (3165, 80892), (3210, 79758), (3745, 68364), (3780, 67731), (3798, 67410), (3852, 66465), (4220, 60669), (4431, 57780), (4494, 56970), (4815, 53172), (5670, 45154), (5697, 44940), (5778, 44310), (5908, 43335), (6330, 40446), (6420, 39879), (6741, 37980), (7385, 34668), (7490, 34182), (7596, 33705), (8667, 29540), (8862, 28890), (8988, 28485), (9495, 26964), (9630, 26586), (11235, 22788), (11340, 22577), (11394, 22470), (11556, 22155), (12660, 20223), (13293, 19260), (13482, 18990), (14445, 17724), (14770, 17334), (14980, 17091)]