201619518

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:689

約数の個数: 64

約数和(自身を含む): 438400512

約数和(自身を除く): 236780994

約数列:

[1, 2, 3, 6, 23, 43, 46, 61, 69, 86, 122, 129, 138, 183, 258, 366, 557, 989, 1114, 1403, 1671, 1978, 2623, 2806, 2967, 3342, 4209, 5246, 5934, 7869, 8418, 12811, 15738, 23951, 25622, 33977, 38433, 47902, 60329, 67954, 71853, 76866, 101931, 120658, 143706, 180987, 203862, 361974, 550873, 781471, 1101746, 1461011, 1562942, 1652619, 2344413, 2922022, 3305238, 4383033, 4688826, 8766066, 33603253, 67206506, 100809759, 201619518]

約数ペア:

[(1, 201619518), (2, 100809759), (3, 67206506), (6, 33603253), (23, 8766066), (43, 4688826), (46, 4383033), (61, 3305238), (69, 2922022), (86, 2344413), (122, 1652619), (129, 1562942), (138, 1461011), (183, 1101746), (258, 781471), (366, 550873), (557, 361974), (989, 203862), (1114, 180987), (1403, 143706), (1671, 120658), (1978, 101931), (2623, 76866), (2806, 71853), (2967, 67954), (3342, 60329), (4209, 47902), (5246, 38433), (5934, 33977), (7869, 25622), (8418, 23951), (12811, 15738)]