257593336

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1693}}^1$

素因数の和:1749

約数の個数: 128

約数和(自身を含む): 683020800

約数和(自身を除く): 425427464

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 19, 22, 26, 28, 38, 44, 52, 56, 76, 77, 88, 91, 104, 133, 143, 152, 154, 182, 209, 247, 266, 286, 308, 364, 418, 494, 532, 572, 616, 728, 836, 988, 1001, 1064, 1144, 1463, 1672, 1693, 1729, 1976, 2002, 2717, 2926, 3386, 3458, 4004, 5434, 5852, 6772, 6916, 8008, 10868, 11704, 11851, 13544, 13832, 18623, 19019, 21736, 22009, 23702, 32167, 37246, 38038, 44018, 47404, 64334, 74492, 76076, 88036, 94808, 128668, 130361, 148984, 152152, 154063, 176072, 225169, 242099, 257336, 260722, 308126, 353837, 418171, 450338, 484198, 521444, 616252, 707674, 836342, 900676, 968396, 1042888, 1232504, 1415348, 1672684, 1694693, 1801352, 1936792, 2476859, 2830696, 2927197, 3345368, 3389386, 4599881, 4953718, 5854394, 6778772, 9199762, 9907436, 11708788, 13557544, 18399524, 19814872, 23417576, 32199167, 36799048, 64398334, 128796668, 257593336]

約数ペア:

[(1, 257593336), (2, 128796668), (4, 64398334), (7, 36799048), (8, 32199167), (11, 23417576), (13, 19814872), (14, 18399524), (19, 13557544), (22, 11708788), (26, 9907436), (28, 9199762), (38, 6778772), (44, 5854394), (52, 4953718), (56, 4599881), (76, 3389386), (77, 3345368), (88, 2927197), (91, 2830696), (104, 2476859), (133, 1936792), (143, 1801352), (152, 1694693), (154, 1672684), (182, 1415348), (209, 1232504), (247, 1042888), (266, 968396), (286, 900676), (308, 836342), (364, 707674), (418, 616252), (494, 521444), (532, 484198), (572, 450338), (616, 418171), (728, 353837), (836, 308126), (988, 260722), (1001, 257336), (1064, 242099), (1144, 225169), (1463, 176072), (1672, 154063), (1693, 152152), (1729, 148984), (1976, 130361), (2002, 128668), (2717, 94808), (2926, 88036), (3386, 76076), (3458, 74492), (4004, 64334), (5434, 47404), (5852, 44018), (6772, 38038), (6916, 37246), (8008, 32167), (10868, 23702), (11704, 22009), (11851, 21736), (13544, 19019), (13832, 18623)]