20244039440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{40237}}^1$

素因数の和:40600

約数の個数: 80

約数和(自身を含む): 49695539520

約数和(自身を除く): 29451500080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 331, 380, 662, 760, 1324, 1520, 1655, 2648, 3310, 5296, 6289, 6620, 12578, 13240, 25156, 26480, 31445, 40237, 50312, 62890, 80474, 100624, 125780, 160948, 201185, 251560, 321896, 402370, 503120, 643792, 764503, 804740, 1529006, 1609480, 3058012, 3218960, 3822515, 6116024, 7645030, 12232048, 13318447, 15290060, 26636894, 30580120, 53273788, 61160240, 66592235, 106547576, 133184470, 213095152, 253050493, 266368940, 506100986, 532737880, 1012201972, 1065475760, 1265252465, 2024403944, 2530504930, 4048807888, 5061009860, 10122019720, 20244039440]

約数ペア:

[(1, 20244039440), (2, 10122019720), (4, 5061009860), (5, 4048807888), (8, 2530504930), (10, 2024403944), (16, 1265252465), (19, 1065475760), (20, 1012201972), (38, 532737880), (40, 506100986), (76, 266368940), (80, 253050493), (95, 213095152), (152, 133184470), (190, 106547576), (304, 66592235), (331, 61160240), (380, 53273788), (662, 30580120), (760, 26636894), (1324, 15290060), (1520, 13318447), (1655, 12232048), (2648, 7645030), (3310, 6116024), (5296, 3822515), (6289, 3218960), (6620, 3058012), (12578, 1609480), (13240, 1529006), (25156, 804740), (26480, 764503), (31445, 643792), (40237, 503120), (50312, 402370), (62890, 321896), (80474, 251560), (100624, 201185), (125780, 160948)]