81239910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{419}}^1$

素因数の和:733

約数の個数: 64

約数和(自身を含む): 204664320

約数和(自身を除く): 123424410

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 281, 345, 419, 562, 690, 838, 843, 1257, 1405, 1686, 2095, 2514, 2810, 4190, 4215, 6285, 6463, 8430, 9637, 12570, 12926, 19274, 19389, 28911, 32315, 38778, 48185, 57822, 64630, 96370, 96945, 117739, 144555, 193890, 235478, 289110, 353217, 588695, 706434, 1177390, 1766085, 2707997, 3532170, 5415994, 8123991, 13539985, 16247982, 27079970, 40619955, 81239910]

約数ペア:

[(1, 81239910), (2, 40619955), (3, 27079970), (5, 16247982), (6, 13539985), (10, 8123991), (15, 5415994), (23, 3532170), (30, 2707997), (46, 1766085), (69, 1177390), (115, 706434), (138, 588695), (230, 353217), (281, 289110), (345, 235478), (419, 193890), (562, 144555), (690, 117739), (838, 96945), (843, 96370), (1257, 64630), (1405, 57822), (1686, 48185), (2095, 38778), (2514, 32315), (2810, 28911), (4190, 19389), (4215, 19274), (6285, 12926), (6463, 12570), (8430, 9637)]