641454880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1949}}^1$

素因数の和:2003

約数の個数: 144

約数和(自身を含む): 1764617400

約数和(自身を除く): 1123162520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 121, 136, 160, 170, 176, 187, 220, 242, 272, 340, 352, 374, 440, 484, 544, 605, 680, 748, 880, 935, 968, 1210, 1360, 1496, 1760, 1870, 1936, 1949, 2057, 2420, 2720, 2992, 3740, 3872, 3898, 4114, 4840, 5984, 7480, 7796, 8228, 9680, 9745, 10285, 14960, 15592, 16456, 19360, 19490, 20570, 21439, 29920, 31184, 32912, 33133, 38980, 41140, 42878, 62368, 65824, 66266, 77960, 82280, 85756, 107195, 132532, 155920, 164560, 165665, 171512, 214390, 235829, 265064, 311840, 329120, 331330, 343024, 364463, 428780, 471658, 530128, 662660, 686048, 728926, 857560, 943316, 1060256, 1179145, 1325320, 1457852, 1715120, 1822315, 1886632, 2358290, 2650640, 2915704, 3430240, 3644630, 3773264, 4009093, 4716580, 5301280, 5831408, 7289260, 7546528, 8018186, 9433160, 11662816, 14578520, 16036372, 18866320, 20045465, 29157040, 32072744, 37732640, 40090930, 58314080, 64145488, 80181860, 128290976, 160363720, 320727440, 641454880]

約数ペア:

[(1, 641454880), (2, 320727440), (4, 160363720), (5, 128290976), (8, 80181860), (10, 64145488), (11, 58314080), (16, 40090930), (17, 37732640), (20, 32072744), (22, 29157040), (32, 20045465), (34, 18866320), (40, 16036372), (44, 14578520), (55, 11662816), (68, 9433160), (80, 8018186), (85, 7546528), (88, 7289260), (110, 5831408), (121, 5301280), (136, 4716580), (160, 4009093), (170, 3773264), (176, 3644630), (187, 3430240), (220, 2915704), (242, 2650640), (272, 2358290), (340, 1886632), (352, 1822315), (374, 1715120), (440, 1457852), (484, 1325320), (544, 1179145), (605, 1060256), (680, 943316), (748, 857560), (880, 728926), (935, 686048), (968, 662660), (1210, 530128), (1360, 471658), (1496, 428780), (1760, 364463), (1870, 343024), (1936, 331330), (1949, 329120), (2057, 311840), (2420, 265064), (2720, 235829), (2992, 214390), (3740, 171512), (3872, 165665), (3898, 164560), (4114, 155920), (4840, 132532), (5984, 107195), (7480, 85756), (7796, 82280), (8228, 77960), (9680, 66266), (9745, 65824), (10285, 62368), (14960, 42878), (15592, 41140), (16456, 38980), (19360, 33133), (19490, 32912), (20570, 31184), (21439, 29920)]