1631988

素因数分解:

$2^2\times 3^5\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 4525248

約数和(自身を除く): 2893260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 73, 81, 92, 108, 138, 146, 162, 207, 219, 243, 276, 292, 324, 414, 438, 486, 621, 657, 828, 876, 972, 1242, 1314, 1679, 1863, 1971, 2484, 2628, 3358, 3726, 3942, 5037, 5589, 5913, 6716, 7452, 7884, 10074, 11178, 11826, 15111, 17739, 20148, 22356, 23652, 30222, 35478, 45333, 60444, 70956, 90666, 135999, 181332, 271998, 407997, 543996, 815994, 1631988]

約数ペア:

[(1, 1631988), (2, 815994), (3, 543996), (4, 407997), (6, 271998), (9, 181332), (12, 135999), (18, 90666), (23, 70956), (27, 60444), (36, 45333), (46, 35478), (54, 30222), (69, 23652), (73, 22356), (81, 20148), (92, 17739), (108, 15111), (138, 11826), (146, 11178), (162, 10074), (207, 7884), (219, 7452), (243, 6716), (276, 5913), (292, 5589), (324, 5037), (414, 3942), (438, 3726), (486, 3358), (621, 2628), (657, 2484), (828, 1971), (876, 1863), (972, 1679), (1242, 1314)]