78123432

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 218021760

約数和(自身を除く): 139898328

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 43, 51, 61, 68, 73, 86, 102, 122, 129, 136, 146, 172, 183, 204, 219, 244, 258, 292, 344, 366, 408, 438, 488, 516, 584, 731, 732, 876, 1032, 1037, 1241, 1462, 1464, 1752, 2074, 2193, 2482, 2623, 2924, 3111, 3139, 3723, 4148, 4386, 4453, 4964, 5246, 5848, 6222, 6278, 7446, 7869, 8296, 8772, 8906, 9417, 9928, 10492, 12444, 12556, 13359, 14892, 15738, 17544, 17812, 18834, 20984, 24888, 25112, 26718, 29784, 31476, 35624, 37668, 44591, 53363, 53436, 62952, 75336, 75701, 89182, 106726, 106872, 133773, 151402, 160089, 178364, 191479, 213452, 227103, 267546, 302804, 320178, 356728, 382958, 426904, 454206, 535092, 574437, 605608, 640356, 765916, 908412, 1070184, 1148874, 1280712, 1531832, 1816824, 2297748, 3255143, 4595496, 6510286, 9765429, 13020572, 19530858, 26041144, 39061716, 78123432]

約数ペア:

[(1, 78123432), (2, 39061716), (3, 26041144), (4, 19530858), (6, 13020572), (8, 9765429), (12, 6510286), (17, 4595496), (24, 3255143), (34, 2297748), (43, 1816824), (51, 1531832), (61, 1280712), (68, 1148874), (73, 1070184), (86, 908412), (102, 765916), (122, 640356), (129, 605608), (136, 574437), (146, 535092), (172, 454206), (183, 426904), (204, 382958), (219, 356728), (244, 320178), (258, 302804), (292, 267546), (344, 227103), (366, 213452), (408, 191479), (438, 178364), (488, 160089), (516, 151402), (584, 133773), (731, 106872), (732, 106726), (876, 89182), (1032, 75701), (1037, 75336), (1241, 62952), (1462, 53436), (1464, 53363), (1752, 44591), (2074, 37668), (2193, 35624), (2482, 31476), (2623, 29784), (2924, 26718), (3111, 25112), (3139, 24888), (3723, 20984), (4148, 18834), (4386, 17812), (4453, 17544), (4964, 15738), (5246, 14892), (5848, 13359), (6222, 12556), (6278, 12444), (7446, 10492), (7869, 9928), (8296, 9417), (8772, 8906)]