780807680

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 160

約数和(自身を含む): 1988712000

約数和(自身を除く): 1207904320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 89, 92, 115, 128, 149, 160, 178, 184, 230, 256, 298, 320, 356, 368, 445, 460, 512, 596, 640, 712, 736, 745, 890, 920, 1192, 1280, 1424, 1472, 1490, 1780, 1840, 2047, 2384, 2560, 2848, 2944, 2980, 3427, 3560, 3680, 4094, 4768, 5696, 5888, 5960, 6854, 7120, 7360, 8188, 9536, 10235, 11392, 11776, 11920, 13261, 13708, 14240, 14720, 16376, 17135, 19072, 20470, 22784, 23840, 26522, 27416, 28480, 29440, 32752, 34270, 38144, 40940, 45568, 47680, 53044, 54832, 56960, 58880, 65504, 66305, 68540, 76288, 81880, 95360, 106088, 109664, 113920, 131008, 132610, 137080, 163760, 190720, 212176, 219328, 227840, 262016, 265220, 274160, 305003, 327520, 381440, 424352, 438656, 524032, 530440, 548320, 610006, 655040, 848704, 877312, 1048064, 1060880, 1096640, 1220012, 1310080, 1525015, 1697408, 1754624, 2121760, 2193280, 2440024, 2620160, 3050030, 3394816, 4243520, 4386560, 4880048, 5240320, 6100060, 6789632, 8487040, 8773120, 9760096, 12200120, 16974080, 19520192, 24400240, 33948160, 39040384, 48800480, 78080768, 97600960, 156161536, 195201920, 390403840, 780807680]

約数ペア:

[(1, 780807680), (2, 390403840), (4, 195201920), (5, 156161536), (8, 97600960), (10, 78080768), (16, 48800480), (20, 39040384), (23, 33948160), (32, 24400240), (40, 19520192), (46, 16974080), (64, 12200120), (80, 9760096), (89, 8773120), (92, 8487040), (115, 6789632), (128, 6100060), (149, 5240320), (160, 4880048), (178, 4386560), (184, 4243520), (230, 3394816), (256, 3050030), (298, 2620160), (320, 2440024), (356, 2193280), (368, 2121760), (445, 1754624), (460, 1697408), (512, 1525015), (596, 1310080), (640, 1220012), (712, 1096640), (736, 1060880), (745, 1048064), (890, 877312), (920, 848704), (1192, 655040), (1280, 610006), (1424, 548320), (1472, 530440), (1490, 524032), (1780, 438656), (1840, 424352), (2047, 381440), (2384, 327520), (2560, 305003), (2848, 274160), (2944, 265220), (2980, 262016), (3427, 227840), (3560, 219328), (3680, 212176), (4094, 190720), (4768, 163760), (5696, 137080), (5888, 132610), (5960, 131008), (6854, 113920), (7120, 109664), (7360, 106088), (8188, 95360), (9536, 81880), (10235, 76288), (11392, 68540), (11776, 66305), (11920, 65504), (13261, 58880), (13708, 56960), (14240, 54832), (14720, 53044), (16376, 47680), (17135, 45568), (19072, 40940), (20470, 38144), (22784, 34270), (23840, 32752), (26522, 29440), (27416, 28480)]