20038895960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1\times {\mathrm{349}}^1$

素因数の和:781

約数の個数: 128

約数和(自身を含む): 46823616000

約数和(自身を除く): 26784720040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 157, 164, 205, 223, 314, 328, 349, 410, 446, 628, 698, 785, 820, 892, 1115, 1256, 1396, 1570, 1640, 1745, 1784, 2230, 2792, 3140, 3490, 4460, 6280, 6437, 6980, 8920, 9143, 12874, 13960, 14309, 18286, 25748, 28618, 32185, 35011, 36572, 45715, 51496, 54793, 57236, 64370, 70022, 71545, 73144, 77827, 91430, 109586, 114472, 128740, 140044, 143090, 155654, 175055, 182860, 219172, 257480, 273965, 280088, 286180, 311308, 350110, 365720, 389135, 438344, 547930, 572360, 622616, 700220, 778270, 1095860, 1400440, 1435451, 1556540, 2191720, 2246513, 2870902, 3113080, 3190907, 4493026, 5741804, 6381814, 7177255, 8986052, 11232565, 11483608, 12218839, 12763628, 14354510, 15954535, 17972104, 22465130, 24437678, 25527256, 28709020, 31909070, 44930260, 48875356, 57418040, 61094195, 63818140, 89860520, 97750712, 122188390, 127636280, 244376780, 488753560, 500972399, 1001944798, 2003889596, 2504861995, 4007779192, 5009723990, 10019447980, 20038895960]

約数ペア:

[(1, 20038895960), (2, 10019447980), (4, 5009723990), (5, 4007779192), (8, 2504861995), (10, 2003889596), (20, 1001944798), (40, 500972399), (41, 488753560), (82, 244376780), (157, 127636280), (164, 122188390), (205, 97750712), (223, 89860520), (314, 63818140), (328, 61094195), (349, 57418040), (410, 48875356), (446, 44930260), (628, 31909070), (698, 28709020), (785, 25527256), (820, 24437678), (892, 22465130), (1115, 17972104), (1256, 15954535), (1396, 14354510), (1570, 12763628), (1640, 12218839), (1745, 11483608), (1784, 11232565), (2230, 8986052), (2792, 7177255), (3140, 6381814), (3490, 5741804), (4460, 4493026), (6280, 3190907), (6437, 3113080), (6980, 2870902), (8920, 2246513), (9143, 2191720), (12874, 1556540), (13960, 1435451), (14309, 1400440), (18286, 1095860), (25748, 778270), (28618, 700220), (32185, 622616), (35011, 572360), (36572, 547930), (45715, 438344), (51496, 389135), (54793, 365720), (57236, 350110), (64370, 311308), (70022, 286180), (71545, 280088), (73144, 273965), (77827, 257480), (91430, 219172), (109586, 182860), (114472, 175055), (128740, 155654), (140044, 143090)]