2156831355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 4282859520

約数和(自身を除く): 2126028165

約数列:

[1, 3, 5, 7, 15, 21, 29, 31, 35, 73, 87, 93, 105, 145, 155, 203, 217, 219, 313, 365, 435, 465, 511, 609, 651, 899, 939, 1015, 1085, 1095, 1533, 1565, 2117, 2191, 2263, 2555, 2697, 3045, 3255, 4495, 4695, 6293, 6351, 6573, 6789, 7665, 9077, 9703, 10585, 10955, 11315, 13485, 14819, 15841, 18879, 22849, 27231, 29109, 31465, 31755, 32865, 33945, 44457, 45385, 47523, 48515, 63539, 65627, 67921, 68547, 74095, 79205, 94395, 114245, 136155, 145545, 159943, 190617, 196881, 203763, 222285, 237615, 281387, 317695, 328135, 339605, 342735, 459389, 479829, 662621, 708319, 799715, 844161, 953085, 984405, 1018815, 1378167, 1406935, 1969709, 1987863, 2124957, 2296945, 2399145, 3313105, 3541595, 4220805, 4638347, 4958233, 5909127, 6890835, 9848545, 9939315, 10624785, 13915041, 14874699, 20541251, 23191735, 24791165, 29545635, 61623753, 69575205, 74373495, 102706255, 143788757, 308118765, 431366271, 718943785, 2156831355]

約数ペア:

[(1, 2156831355), (3, 718943785), (5, 431366271), (7, 308118765), (15, 143788757), (21, 102706255), (29, 74373495), (31, 69575205), (35, 61623753), (73, 29545635), (87, 24791165), (93, 23191735), (105, 20541251), (145, 14874699), (155, 13915041), (203, 10624785), (217, 9939315), (219, 9848545), (313, 6890835), (365, 5909127), (435, 4958233), (465, 4638347), (511, 4220805), (609, 3541595), (651, 3313105), (899, 2399145), (939, 2296945), (1015, 2124957), (1085, 1987863), (1095, 1969709), (1533, 1406935), (1565, 1378167), (2117, 1018815), (2191, 984405), (2263, 953085), (2555, 844161), (2697, 799715), (3045, 708319), (3255, 662621), (4495, 479829), (4695, 459389), (6293, 342735), (6351, 339605), (6573, 328135), (6789, 317695), (7665, 281387), (9077, 237615), (9703, 222285), (10585, 203763), (10955, 196881), (11315, 190617), (13485, 159943), (14819, 145545), (15841, 136155), (18879, 114245), (22849, 94395), (27231, 79205), (29109, 74095), (31465, 68547), (31755, 67921), (32865, 65627), (33945, 63539), (44457, 48515), (45385, 47523)]