257565912

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 707097600

約数和(自身を除く): 449531688

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 61, 68, 79, 102, 122, 131, 136, 158, 183, 204, 237, 244, 262, 316, 366, 393, 408, 474, 488, 524, 632, 732, 786, 948, 1037, 1048, 1343, 1464, 1572, 1896, 2074, 2227, 2686, 3111, 3144, 4029, 4148, 4454, 4819, 5372, 6222, 6681, 7991, 8058, 8296, 8908, 9638, 10349, 10744, 12444, 13362, 14457, 15982, 16116, 17816, 19276, 20698, 23973, 24888, 26724, 28914, 31047, 31964, 32232, 38552, 41396, 47946, 53448, 57828, 62094, 63928, 81923, 82792, 95892, 115656, 124188, 135847, 163846, 175933, 191784, 245769, 248376, 271694, 327692, 351866, 407541, 491538, 527799, 543388, 631289, 655384, 703732, 815082, 983076, 1055598, 1086776, 1262578, 1407464, 1630164, 1893867, 1966152, 2111196, 2525156, 3260328, 3787734, 4222392, 5050312, 7575468, 10731913, 15150936, 21463826, 32195739, 42927652, 64391478, 85855304, 128782956, 257565912]

約数ペア:

[(1, 257565912), (2, 128782956), (3, 85855304), (4, 64391478), (6, 42927652), (8, 32195739), (12, 21463826), (17, 15150936), (24, 10731913), (34, 7575468), (51, 5050312), (61, 4222392), (68, 3787734), (79, 3260328), (102, 2525156), (122, 2111196), (131, 1966152), (136, 1893867), (158, 1630164), (183, 1407464), (204, 1262578), (237, 1086776), (244, 1055598), (262, 983076), (316, 815082), (366, 703732), (393, 655384), (408, 631289), (474, 543388), (488, 527799), (524, 491538), (632, 407541), (732, 351866), (786, 327692), (948, 271694), (1037, 248376), (1048, 245769), (1343, 191784), (1464, 175933), (1572, 163846), (1896, 135847), (2074, 124188), (2227, 115656), (2686, 95892), (3111, 82792), (3144, 81923), (4029, 63928), (4148, 62094), (4454, 57828), (4819, 53448), (5372, 47946), (6222, 41396), (6681, 38552), (7991, 32232), (8058, 31964), (8296, 31047), (8908, 28914), (9638, 26724), (10349, 24888), (10744, 23973), (12444, 20698), (13362, 19276), (14457, 17816), (15982, 16116)]