405338780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1979}}^1$

素因数の和:2032

約数の個数: 144

約数和(自身を含む): 1137628800

約数和(自身を除く): 732290020

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 95, 98, 110, 133, 140, 154, 190, 196, 209, 220, 245, 266, 308, 380, 385, 418, 490, 532, 539, 665, 770, 836, 931, 980, 1045, 1078, 1330, 1463, 1540, 1862, 1979, 2090, 2156, 2660, 2695, 2926, 3724, 3958, 4180, 4655, 5390, 5852, 7315, 7916, 9310, 9895, 10241, 10780, 13853, 14630, 18620, 19790, 20482, 21769, 27706, 29260, 37601, 39580, 40964, 43538, 51205, 55412, 69265, 75202, 87076, 96971, 102410, 108845, 138530, 150404, 152383, 188005, 193942, 204820, 217690, 263207, 277060, 304766, 376010, 387884, 413611, 435380, 484855, 526414, 609532, 752020, 761915, 827222, 969710, 1052828, 1066681, 1316035, 1523830, 1654444, 1842449, 1939420, 2068055, 2133362, 2632070, 2895277, 3047660, 3684898, 4136110, 4266724, 5264140, 5333405, 5790554, 7369796, 8272220, 9212245, 10666810, 11581108, 14476385, 18424490, 20266939, 21333620, 28952770, 36848980, 40533878, 57905540, 81067756, 101334695, 202669390, 405338780]

約数ペア:

[(1, 405338780), (2, 202669390), (4, 101334695), (5, 81067756), (7, 57905540), (10, 40533878), (11, 36848980), (14, 28952770), (19, 21333620), (20, 20266939), (22, 18424490), (28, 14476385), (35, 11581108), (38, 10666810), (44, 9212245), (49, 8272220), (55, 7369796), (70, 5790554), (76, 5333405), (77, 5264140), (95, 4266724), (98, 4136110), (110, 3684898), (133, 3047660), (140, 2895277), (154, 2632070), (190, 2133362), (196, 2068055), (209, 1939420), (220, 1842449), (245, 1654444), (266, 1523830), (308, 1316035), (380, 1066681), (385, 1052828), (418, 969710), (490, 827222), (532, 761915), (539, 752020), (665, 609532), (770, 526414), (836, 484855), (931, 435380), (980, 413611), (1045, 387884), (1078, 376010), (1330, 304766), (1463, 277060), (1540, 263207), (1862, 217690), (1979, 204820), (2090, 193942), (2156, 188005), (2660, 152383), (2695, 150404), (2926, 138530), (3724, 108845), (3958, 102410), (4180, 96971), (4655, 87076), (5390, 75202), (5852, 69265), (7315, 55412), (7916, 51205), (9310, 43538), (9895, 40964), (10241, 39580), (10780, 37601), (13853, 29260), (14630, 27706), (18620, 21769), (19790, 20482)]