128520808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 274982400

約数和(自身を除く): 146461592

約数列:

[1, 2, 4, 8, 13, 26, 29, 43, 52, 58, 86, 104, 116, 172, 232, 344, 377, 559, 754, 991, 1118, 1247, 1508, 1982, 2236, 2494, 3016, 3964, 4472, 4988, 7928, 9976, 12883, 16211, 25766, 28739, 32422, 42613, 51532, 57478, 64844, 85226, 103064, 114956, 129688, 170452, 229912, 340904, 373607, 553969, 747214, 1107938, 1235777, 1494428, 2215876, 2471554, 2988856, 4431752, 4943108, 9886216, 16065101, 32130202, 64260404, 128520808]

約数ペア:

[(1, 128520808), (2, 64260404), (4, 32130202), (8, 16065101), (13, 9886216), (26, 4943108), (29, 4431752), (43, 2988856), (52, 2471554), (58, 2215876), (86, 1494428), (104, 1235777), (116, 1107938), (172, 747214), (232, 553969), (344, 373607), (377, 340904), (559, 229912), (754, 170452), (991, 129688), (1118, 114956), (1247, 103064), (1508, 85226), (1982, 64844), (2236, 57478), (2494, 51532), (3016, 42613), (3964, 32422), (4472, 28739), (4988, 25766), (7928, 16211), (9976, 12883)]