54840080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:472

約数の個数: 80

約数和(自身を含む): 135854400

約数和(自身を除く): 81014320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 109, 152, 190, 218, 304, 331, 380, 436, 545, 662, 760, 872, 1090, 1324, 1520, 1655, 1744, 2071, 2180, 2648, 3310, 4142, 4360, 5296, 6289, 6620, 8284, 8720, 10355, 12578, 13240, 16568, 20710, 25156, 26480, 31445, 33136, 36079, 41420, 50312, 62890, 72158, 82840, 100624, 125780, 144316, 165680, 180395, 251560, 288632, 360790, 503120, 577264, 685501, 721580, 1371002, 1443160, 2742004, 2886320, 3427505, 5484008, 6855010, 10968016, 13710020, 27420040, 54840080]

約数ペア:

[(1, 54840080), (2, 27420040), (4, 13710020), (5, 10968016), (8, 6855010), (10, 5484008), (16, 3427505), (19, 2886320), (20, 2742004), (38, 1443160), (40, 1371002), (76, 721580), (80, 685501), (95, 577264), (109, 503120), (152, 360790), (190, 288632), (218, 251560), (304, 180395), (331, 165680), (380, 144316), (436, 125780), (545, 100624), (662, 82840), (760, 72158), (872, 62890), (1090, 50312), (1324, 41420), (1520, 36079), (1655, 33136), (1744, 31445), (2071, 26480), (2180, 25156), (2648, 20710), (3310, 16568), (4142, 13240), (4360, 12578), (5296, 10355), (6289, 8720), (6620, 8284)]