278981118

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{241}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 717171840

約数和(自身を除く): 438190722

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 97, 102, 117, 153, 194, 221, 234, 241, 291, 306, 351, 442, 459, 482, 582, 663, 702, 723, 873, 918, 1261, 1326, 1446, 1649, 1746, 1989, 2169, 2522, 2619, 3133, 3298, 3783, 3978, 4097, 4338, 4947, 5238, 5967, 6266, 6507, 7566, 8194, 9399, 9894, 11349, 11934, 12291, 13014, 14841, 18798, 21437, 22698, 23377, 24582, 28197, 29682, 34047, 36873, 42874, 44523, 46754, 53261, 56394, 64311, 68094, 70131, 73746, 84591, 89046, 106522, 110619, 128622, 140262, 159783, 169182, 192933, 210393, 221238, 303901, 319566, 385866, 397409, 420786, 479349, 578799, 607802, 631179, 794818, 911703, 958698, 1157598, 1192227, 1262358, 1438047, 1823406, 2384454, 2735109, 2876094, 3576681, 5166317, 5470218, 7153362, 8205327, 10332634, 10730043, 15498951, 16410654, 21460086, 30997902, 46496853, 92993706, 139490559, 278981118]

約数ペア:

[(1, 278981118), (2, 139490559), (3, 92993706), (6, 46496853), (9, 30997902), (13, 21460086), (17, 16410654), (18, 15498951), (26, 10730043), (27, 10332634), (34, 8205327), (39, 7153362), (51, 5470218), (54, 5166317), (78, 3576681), (97, 2876094), (102, 2735109), (117, 2384454), (153, 1823406), (194, 1438047), (221, 1262358), (234, 1192227), (241, 1157598), (291, 958698), (306, 911703), (351, 794818), (442, 631179), (459, 607802), (482, 578799), (582, 479349), (663, 420786), (702, 397409), (723, 385866), (873, 319566), (918, 303901), (1261, 221238), (1326, 210393), (1446, 192933), (1649, 169182), (1746, 159783), (1989, 140262), (2169, 128622), (2522, 110619), (2619, 106522), (3133, 89046), (3298, 84591), (3783, 73746), (3978, 70131), (4097, 68094), (4338, 64311), (4947, 56394), (5238, 53261), (5967, 46754), (6266, 44523), (6507, 42874), (7566, 36873), (8194, 34047), (9399, 29682), (9894, 28197), (11349, 24582), (11934, 23377), (12291, 22698), (13014, 21437), (14841, 18798)]