20764564680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{21557}}^1$

素因数の和:21943

約数の個数: 128

約数和(自身を含む): 65191392000

約数和(自身を除く): 44426827320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 349, 460, 552, 690, 698, 920, 1047, 1380, 1396, 1745, 2094, 2760, 2792, 3490, 4188, 5235, 6980, 8027, 8376, 10470, 13960, 16054, 20940, 21557, 24081, 32108, 40135, 41880, 43114, 48162, 64216, 64671, 80270, 86228, 96324, 107785, 120405, 129342, 160540, 172456, 192648, 215570, 240810, 258684, 321080, 323355, 431140, 481620, 495811, 517368, 646710, 862280, 963240, 991622, 1293420, 1487433, 1983244, 2479055, 2586840, 2974866, 3966488, 4958110, 5949732, 7437165, 7523393, 9916220, 11899464, 14874330, 15046786, 19832440, 22570179, 29748660, 30093572, 37616965, 45140358, 59497320, 60187144, 75233930, 90280716, 112850895, 150467860, 173038039, 180561432, 225701790, 300935720, 346076078, 451403580, 519114117, 692152156, 865190195, 902807160, 1038228234, 1384304312, 1730380390, 2076456468, 2595570585, 3460760780, 4152912936, 5191141170, 6921521560, 10382282340, 20764564680]

約数ペア:

[(1, 20764564680), (2, 10382282340), (3, 6921521560), (4, 5191141170), (5, 4152912936), (6, 3460760780), (8, 2595570585), (10, 2076456468), (12, 1730380390), (15, 1384304312), (20, 1038228234), (23, 902807160), (24, 865190195), (30, 692152156), (40, 519114117), (46, 451403580), (60, 346076078), (69, 300935720), (92, 225701790), (115, 180561432), (120, 173038039), (138, 150467860), (184, 112850895), (230, 90280716), (276, 75233930), (345, 60187144), (349, 59497320), (460, 45140358), (552, 37616965), (690, 30093572), (698, 29748660), (920, 22570179), (1047, 19832440), (1380, 15046786), (1396, 14874330), (1745, 11899464), (2094, 9916220), (2760, 7523393), (2792, 7437165), (3490, 5949732), (4188, 4958110), (5235, 3966488), (6980, 2974866), (8027, 2586840), (8376, 2479055), (10470, 1983244), (13960, 1487433), (16054, 1293420), (20940, 991622), (21557, 963240), (24081, 862280), (32108, 646710), (40135, 517368), (41880, 495811), (43114, 481620), (48162, 431140), (64216, 323355), (64671, 321080), (80270, 258684), (86228, 240810), (96324, 215570), (107785, 192648), (120405, 172456), (129342, 160540)]