51651880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 144635220

約数和(自身を除く): 92983340

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 73, 76, 95, 98, 133, 140, 146, 152, 190, 196, 245, 266, 280, 292, 361, 365, 380, 392, 490, 511, 532, 584, 665, 722, 730, 760, 931, 980, 1022, 1064, 1330, 1387, 1444, 1460, 1805, 1862, 1960, 2044, 2527, 2555, 2660, 2774, 2888, 2920, 3577, 3610, 3724, 4088, 4655, 5054, 5110, 5320, 5548, 6935, 7154, 7220, 7448, 9310, 9709, 10108, 10220, 11096, 12635, 13870, 14308, 14440, 17689, 17885, 18620, 19418, 20216, 20440, 25270, 26353, 27740, 28616, 35378, 35770, 37240, 38836, 48545, 50540, 52706, 55480, 67963, 70756, 71540, 77672, 88445, 97090, 101080, 105412, 131765, 135926, 141512, 143080, 176890, 184471, 194180, 210824, 263530, 271852, 339815, 353780, 368942, 388360, 527060, 543704, 679630, 707560, 737884, 922355, 1054120, 1291297, 1359260, 1475768, 1844710, 2582594, 2718520, 3689420, 5165188, 6456485, 7378840, 10330376, 12912970, 25825940, 51651880]

約数ペア:

[(1, 51651880), (2, 25825940), (4, 12912970), (5, 10330376), (7, 7378840), (8, 6456485), (10, 5165188), (14, 3689420), (19, 2718520), (20, 2582594), (28, 1844710), (35, 1475768), (38, 1359260), (40, 1291297), (49, 1054120), (56, 922355), (70, 737884), (73, 707560), (76, 679630), (95, 543704), (98, 527060), (133, 388360), (140, 368942), (146, 353780), (152, 339815), (190, 271852), (196, 263530), (245, 210824), (266, 194180), (280, 184471), (292, 176890), (361, 143080), (365, 141512), (380, 135926), (392, 131765), (490, 105412), (511, 101080), (532, 97090), (584, 88445), (665, 77672), (722, 71540), (730, 70756), (760, 67963), (931, 55480), (980, 52706), (1022, 50540), (1064, 48545), (1330, 38836), (1387, 37240), (1444, 35770), (1460, 35378), (1805, 28616), (1862, 27740), (1960, 26353), (2044, 25270), (2527, 20440), (2555, 20216), (2660, 19418), (2774, 18620), (2888, 17885), (2920, 17689), (3577, 14440), (3610, 14308), (3724, 13870), (4088, 12635), (4655, 11096), (5054, 10220), (5110, 10108), (5320, 9709), (5548, 9310), (6935, 7448), (7154, 7220)]