15491840

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:67

約数の個数: 216

約数和(自身を含む): 48933360

約数和(自身を除く): 33441520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 32, 35, 38, 40, 49, 52, 56, 64, 65, 70, 76, 80, 91, 95, 98, 104, 112, 128, 130, 133, 140, 152, 160, 182, 190, 196, 208, 224, 245, 247, 256, 260, 266, 280, 304, 320, 364, 380, 392, 416, 448, 455, 490, 494, 520, 532, 560, 608, 637, 640, 665, 728, 760, 784, 832, 896, 910, 931, 980, 988, 1040, 1064, 1120, 1216, 1235, 1274, 1280, 1330, 1456, 1520, 1568, 1664, 1729, 1792, 1820, 1862, 1960, 1976, 2080, 2128, 2240, 2432, 2470, 2548, 2660, 2912, 3040, 3136, 3185, 3328, 3458, 3640, 3724, 3920, 3952, 4160, 4256, 4480, 4655, 4864, 4940, 5096, 5320, 5824, 6080, 6272, 6370, 6916, 7280, 7448, 7840, 7904, 8320, 8512, 8645, 8960, 9310, 9880, 10192, 10640, 11648, 12103, 12160, 12544, 12740, 13832, 14560, 14896, 15680, 15808, 16640, 17024, 17290, 18620, 19760, 20384, 21280, 23296, 24206, 24320, 25480, 27664, 29120, 29792, 31360, 31616, 34048, 34580, 37240, 39520, 40768, 42560, 48412, 50960, 55328, 58240, 59584, 60515, 62720, 63232, 69160, 74480, 79040, 81536, 85120, 96824, 101920, 110656, 116480, 119168, 121030, 138320, 148960, 158080, 163072, 170240, 193648, 203840, 221312, 238336, 242060, 276640, 297920, 316160, 387296, 407680, 442624, 484120, 553280, 595840, 774592, 815360, 968240, 1106560, 1191680, 1549184, 1936480, 2213120, 3098368, 3872960, 7745920, 15491840]

約数ペア:

[(1, 15491840), (2, 7745920), (4, 3872960), (5, 3098368), (7, 2213120), (8, 1936480), (10, 1549184), (13, 1191680), (14, 1106560), (16, 968240), (19, 815360), (20, 774592), (26, 595840), (28, 553280), (32, 484120), (35, 442624), (38, 407680), (40, 387296), (49, 316160), (52, 297920), (56, 276640), (64, 242060), (65, 238336), (70, 221312), (76, 203840), (80, 193648), (91, 170240), (95, 163072), (98, 158080), (104, 148960), (112, 138320), (128, 121030), (130, 119168), (133, 116480), (140, 110656), (152, 101920), (160, 96824), (182, 85120), (190, 81536), (196, 79040), (208, 74480), (224, 69160), (245, 63232), (247, 62720), (256, 60515), (260, 59584), (266, 58240), (280, 55328), (304, 50960), (320, 48412), (364, 42560), (380, 40768), (392, 39520), (416, 37240), (448, 34580), (455, 34048), (490, 31616), (494, 31360), (520, 29792), (532, 29120), (560, 27664), (608, 25480), (637, 24320), (640, 24206), (665, 23296), (728, 21280), (760, 20384), (784, 19760), (832, 18620), (896, 17290), (910, 17024), (931, 16640), (980, 15808), (988, 15680), (1040, 14896), (1064, 14560), (1120, 13832), (1216, 12740), (1235, 12544), (1274, 12160), (1280, 12103), (1330, 11648), (1456, 10640), (1520, 10192), (1568, 9880), (1664, 9310), (1729, 8960), (1792, 8645), (1820, 8512), (1862, 8320), (1960, 7904), (1976, 7840), (2080, 7448), (2128, 7280), (2240, 6916), (2432, 6370), (2470, 6272), (2548, 6080), (2660, 5824), (2912, 5320), (3040, 5096), (3136, 4940), (3185, 4864), (3328, 4655), (3458, 4480), (3640, 4256), (3724, 4160), (3920, 3952)]