491049780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:730

約数の個数: 144

約数和(自身を含む): 1510145280

約数和(自身を除く): 1019095500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 79, 130, 156, 158, 169, 195, 237, 260, 316, 338, 390, 395, 474, 507, 613, 676, 780, 790, 845, 948, 1014, 1027, 1185, 1226, 1580, 1690, 1839, 2028, 2054, 2370, 2452, 2535, 3065, 3081, 3380, 3678, 4108, 4740, 5070, 5135, 6130, 6162, 7356, 7969, 9195, 10140, 10270, 12260, 12324, 13351, 15405, 15938, 18390, 20540, 23907, 26702, 30810, 31876, 36780, 39845, 40053, 47814, 48427, 53404, 61620, 66755, 79690, 80106, 95628, 96854, 103597, 119535, 133510, 145281, 159380, 160212, 193708, 200265, 207194, 239070, 242135, 267020, 290562, 310791, 400530, 414388, 478140, 484270, 517985, 581124, 621582, 629551, 726405, 801060, 968540, 1035970, 1243164, 1259102, 1452810, 1553955, 1888653, 2071940, 2518204, 2905620, 3107910, 3147755, 3777306, 6215820, 6295510, 7554612, 8184163, 9443265, 12591020, 16368326, 18886530, 24552489, 32736652, 37773060, 40920815, 49104978, 81841630, 98209956, 122762445, 163683260, 245524890, 491049780]

約数ペア:

[(1, 491049780), (2, 245524890), (3, 163683260), (4, 122762445), (5, 98209956), (6, 81841630), (10, 49104978), (12, 40920815), (13, 37773060), (15, 32736652), (20, 24552489), (26, 18886530), (30, 16368326), (39, 12591020), (52, 9443265), (60, 8184163), (65, 7554612), (78, 6295510), (79, 6215820), (130, 3777306), (156, 3147755), (158, 3107910), (169, 2905620), (195, 2518204), (237, 2071940), (260, 1888653), (316, 1553955), (338, 1452810), (390, 1259102), (395, 1243164), (474, 1035970), (507, 968540), (613, 801060), (676, 726405), (780, 629551), (790, 621582), (845, 581124), (948, 517985), (1014, 484270), (1027, 478140), (1185, 414388), (1226, 400530), (1580, 310791), (1690, 290562), (1839, 267020), (2028, 242135), (2054, 239070), (2370, 207194), (2452, 200265), (2535, 193708), (3065, 160212), (3081, 159380), (3380, 145281), (3678, 133510), (4108, 119535), (4740, 103597), (5070, 96854), (5135, 95628), (6130, 80106), (6162, 79690), (7356, 66755), (7969, 61620), (9195, 53404), (10140, 48427), (10270, 47814), (12260, 40053), (12324, 39845), (13351, 36780), (15405, 31876), (15938, 30810), (18390, 26702), (20540, 23907)]