20123802880

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{4783}}^1$

素因数の和:4996

約数の個数: 144

約数和(自身を含む): 51043749120

約数和(自身を除く): 30919946240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 173, 190, 256, 304, 320, 346, 380, 608, 640, 692, 760, 865, 1216, 1280, 1384, 1520, 1730, 2432, 2768, 3040, 3287, 3460, 4783, 4864, 5536, 6080, 6574, 6920, 9566, 11072, 12160, 13148, 13840, 16435, 19132, 22144, 23915, 24320, 26296, 27680, 32870, 38264, 44288, 47830, 52592, 55360, 65740, 76528, 90877, 95660, 105184, 110720, 131480, 153056, 181754, 191320, 210368, 221440, 262960, 306112, 363508, 382640, 420736, 454385, 525920, 612224, 727016, 765280, 827459, 841472, 908770, 1051840, 1224448, 1454032, 1530560, 1654918, 1817540, 2103680, 2908064, 3061120, 3309836, 3635080, 4137295, 4207360, 5816128, 6122240, 6619672, 7270160, 8274590, 11632256, 13239344, 14540320, 15721721, 16549180, 23264512, 26478688, 29080640, 31443442, 33098360, 52957376, 58161280, 62886884, 66196720, 78608605, 105914752, 116322560, 125773768, 132393440, 157217210, 211829504, 251547536, 264786880, 314434420, 503095072, 529573760, 628868840, 1006190144, 1059147520, 1257737680, 2012380288, 2515475360, 4024760576, 5030950720, 10061901440, 20123802880]

約数ペア:

[(1, 20123802880), (2, 10061901440), (4, 5030950720), (5, 4024760576), (8, 2515475360), (10, 2012380288), (16, 1257737680), (19, 1059147520), (20, 1006190144), (32, 628868840), (38, 529573760), (40, 503095072), (64, 314434420), (76, 264786880), (80, 251547536), (95, 211829504), (128, 157217210), (152, 132393440), (160, 125773768), (173, 116322560), (190, 105914752), (256, 78608605), (304, 66196720), (320, 62886884), (346, 58161280), (380, 52957376), (608, 33098360), (640, 31443442), (692, 29080640), (760, 26478688), (865, 23264512), (1216, 16549180), (1280, 15721721), (1384, 14540320), (1520, 13239344), (1730, 11632256), (2432, 8274590), (2768, 7270160), (3040, 6619672), (3287, 6122240), (3460, 5816128), (4783, 4207360), (4864, 4137295), (5536, 3635080), (6080, 3309836), (6574, 3061120), (6920, 2908064), (9566, 2103680), (11072, 1817540), (12160, 1654918), (13148, 1530560), (13840, 1454032), (16435, 1224448), (19132, 1051840), (22144, 908770), (23915, 841472), (24320, 827459), (26296, 765280), (27680, 727016), (32870, 612224), (38264, 525920), (44288, 454385), (47830, 420736), (52592, 382640), (55360, 363508), (65740, 306112), (76528, 262960), (90877, 221440), (95660, 210368), (105184, 191320), (110720, 181754), (131480, 153056)]