123854520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:697

約数の個数: 128

約数和(自身を含む): 397742400

約数和(自身を除く): 273887880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 109, 120, 136, 170, 204, 218, 255, 327, 340, 408, 436, 510, 545, 557, 654, 680, 872, 1020, 1090, 1114, 1308, 1635, 1671, 1853, 2040, 2180, 2228, 2616, 2785, 3270, 3342, 3706, 4360, 4456, 5559, 5570, 6540, 6684, 7412, 8355, 9265, 9469, 11118, 11140, 13080, 13368, 14824, 16710, 18530, 18938, 22236, 22280, 27795, 28407, 33420, 37060, 37876, 44472, 47345, 55590, 56814, 60713, 66840, 74120, 75752, 94690, 111180, 113628, 121426, 142035, 182139, 189380, 222360, 227256, 242852, 284070, 303565, 364278, 378760, 485704, 568140, 607130, 728556, 910695, 1032121, 1136280, 1214260, 1457112, 1821390, 2064242, 2428520, 3096363, 3642780, 4128484, 5160605, 6192726, 7285560, 8256968, 10321210, 12385452, 15481815, 20642420, 24770904, 30963630, 41284840, 61927260, 123854520]

約数ペア:

[(1, 123854520), (2, 61927260), (3, 41284840), (4, 30963630), (5, 24770904), (6, 20642420), (8, 15481815), (10, 12385452), (12, 10321210), (15, 8256968), (17, 7285560), (20, 6192726), (24, 5160605), (30, 4128484), (34, 3642780), (40, 3096363), (51, 2428520), (60, 2064242), (68, 1821390), (85, 1457112), (102, 1214260), (109, 1136280), (120, 1032121), (136, 910695), (170, 728556), (204, 607130), (218, 568140), (255, 485704), (327, 378760), (340, 364278), (408, 303565), (436, 284070), (510, 242852), (545, 227256), (557, 222360), (654, 189380), (680, 182139), (872, 142035), (1020, 121426), (1090, 113628), (1114, 111180), (1308, 94690), (1635, 75752), (1671, 74120), (1853, 66840), (2040, 60713), (2180, 56814), (2228, 55590), (2616, 47345), (2785, 44472), (3270, 37876), (3342, 37060), (3706, 33420), (4360, 28407), (4456, 27795), (5559, 22280), (5570, 22236), (6540, 18938), (6684, 18530), (7412, 16710), (8355, 14824), (9265, 13368), (9469, 13080), (11118, 11140)]