1640023840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1543}}^1$

素因数の和:1651

約数の個数: 192

約数和(自身を含む): 4837142016

約数和(自身を除く): 3197118176

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 73, 80, 91, 104, 112, 130, 140, 146, 160, 182, 208, 224, 260, 280, 292, 364, 365, 416, 455, 511, 520, 560, 584, 728, 730, 910, 949, 1022, 1040, 1120, 1168, 1456, 1460, 1543, 1820, 1898, 2044, 2080, 2336, 2555, 2912, 2920, 3086, 3640, 3796, 4088, 4745, 5110, 5840, 6172, 6643, 7280, 7592, 7715, 8176, 9490, 10220, 10801, 11680, 12344, 13286, 14560, 15184, 15430, 16352, 18980, 20059, 20440, 21602, 24688, 26572, 30368, 30860, 33215, 37960, 40118, 40880, 43204, 49376, 53144, 54005, 61720, 66430, 75920, 80236, 81760, 86408, 100295, 106288, 108010, 112639, 123440, 132860, 140413, 151840, 160472, 172816, 200590, 212576, 216020, 225278, 246880, 265720, 280826, 320944, 345632, 401180, 432040, 450556, 531440, 561652, 563195, 641888, 702065, 788473, 802360, 864080, 901112, 1062880, 1123304, 1126390, 1404130, 1464307, 1576946, 1604720, 1728160, 1802224, 2246608, 2252780, 2808260, 2928614, 3153892, 3209440, 3604448, 3942365, 4493216, 4505560, 5616520, 5857228, 6307784, 7321535, 7884730, 9011120, 10250149, 11233040, 11714456, 12615568, 14643070, 15769460, 18022240, 20500298, 22466080, 23428912, 25231136, 29286140, 31538920, 41000596, 46857824, 51250745, 58572280, 63077840, 82001192, 102501490, 117144560, 126155680, 164002384, 205002980, 234289120, 328004768, 410005960, 820011920, 1640023840]

約数ペア:

[(1, 1640023840), (2, 820011920), (4, 410005960), (5, 328004768), (7, 234289120), (8, 205002980), (10, 164002384), (13, 126155680), (14, 117144560), (16, 102501490), (20, 82001192), (26, 63077840), (28, 58572280), (32, 51250745), (35, 46857824), (40, 41000596), (52, 31538920), (56, 29286140), (65, 25231136), (70, 23428912), (73, 22466080), (80, 20500298), (91, 18022240), (104, 15769460), (112, 14643070), (130, 12615568), (140, 11714456), (146, 11233040), (160, 10250149), (182, 9011120), (208, 7884730), (224, 7321535), (260, 6307784), (280, 5857228), (292, 5616520), (364, 4505560), (365, 4493216), (416, 3942365), (455, 3604448), (511, 3209440), (520, 3153892), (560, 2928614), (584, 2808260), (728, 2252780), (730, 2246608), (910, 1802224), (949, 1728160), (1022, 1604720), (1040, 1576946), (1120, 1464307), (1168, 1404130), (1456, 1126390), (1460, 1123304), (1543, 1062880), (1820, 901112), (1898, 864080), (2044, 802360), (2080, 788473), (2336, 702065), (2555, 641888), (2912, 563195), (2920, 561652), (3086, 531440), (3640, 450556), (3796, 432040), (4088, 401180), (4745, 345632), (5110, 320944), (5840, 280826), (6172, 265720), (6643, 246880), (7280, 225278), (7592, 216020), (7715, 212576), (8176, 200590), (9490, 172816), (10220, 160472), (10801, 151840), (11680, 140413), (12344, 132860), (13286, 123440), (14560, 112639), (15184, 108010), (15430, 106288), (16352, 100295), (18980, 86408), (20059, 81760), (20440, 80236), (21602, 75920), (24688, 66430), (26572, 61720), (30368, 54005), (30860, 53144), (33215, 49376), (37960, 43204), (40118, 40880)]