256394320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{859}}^1$

素因数の和:933

約数の個数: 160

約数和(自身を含む): 752451840

約数和(自身を除く): 496057520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 80, 82, 91, 104, 112, 130, 140, 164, 182, 205, 208, 260, 280, 287, 328, 364, 410, 455, 520, 533, 560, 574, 656, 728, 820, 859, 910, 1040, 1066, 1148, 1435, 1456, 1640, 1718, 1820, 2132, 2296, 2665, 2870, 3280, 3436, 3640, 3731, 4264, 4295, 4592, 5330, 5740, 6013, 6872, 7280, 7462, 8528, 8590, 10660, 11167, 11480, 12026, 13744, 14924, 17180, 18655, 21320, 22334, 22960, 24052, 29848, 30065, 34360, 35219, 37310, 42640, 44668, 48104, 55835, 59696, 60130, 68720, 70438, 74620, 78169, 89336, 96208, 111670, 120260, 140876, 149240, 156338, 176095, 178672, 223340, 240520, 246533, 281752, 298480, 312676, 352190, 390845, 446680, 457847, 481040, 493066, 563504, 625352, 704380, 781690, 893360, 915694, 986132, 1232665, 1250704, 1408760, 1563380, 1831388, 1972264, 2289235, 2465330, 2817520, 3126760, 3204929, 3662776, 3944528, 4578470, 4930660, 6253520, 6409858, 7325552, 9156940, 9861320, 12819716, 16024645, 18313880, 19722640, 25639432, 32049290, 36627760, 51278864, 64098580, 128197160, 256394320]

約数ペア:

[(1, 256394320), (2, 128197160), (4, 64098580), (5, 51278864), (7, 36627760), (8, 32049290), (10, 25639432), (13, 19722640), (14, 18313880), (16, 16024645), (20, 12819716), (26, 9861320), (28, 9156940), (35, 7325552), (40, 6409858), (41, 6253520), (52, 4930660), (56, 4578470), (65, 3944528), (70, 3662776), (80, 3204929), (82, 3126760), (91, 2817520), (104, 2465330), (112, 2289235), (130, 1972264), (140, 1831388), (164, 1563380), (182, 1408760), (205, 1250704), (208, 1232665), (260, 986132), (280, 915694), (287, 893360), (328, 781690), (364, 704380), (410, 625352), (455, 563504), (520, 493066), (533, 481040), (560, 457847), (574, 446680), (656, 390845), (728, 352190), (820, 312676), (859, 298480), (910, 281752), (1040, 246533), (1066, 240520), (1148, 223340), (1435, 178672), (1456, 176095), (1640, 156338), (1718, 149240), (1820, 140876), (2132, 120260), (2296, 111670), (2665, 96208), (2870, 89336), (3280, 78169), (3436, 74620), (3640, 70438), (3731, 68720), (4264, 60130), (4295, 59696), (4592, 55835), (5330, 48104), (5740, 44668), (6013, 42640), (6872, 37310), (7280, 35219), (7462, 34360), (8528, 30065), (8590, 29848), (10660, 24052), (11167, 22960), (11480, 22334), (12026, 21320), (13744, 18655), (14924, 17180)]