20671804585

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 28055808000

約数和(自身を除く): 7384003415

約数列:

[1, 5, 17, 19, 85, 95, 131, 199, 323, 491, 655, 995, 1615, 2227, 2455, 2489, 3383, 3781, 8347, 9329, 11135, 12445, 16915, 18905, 26069, 41735, 42313, 46645, 64277, 64321, 97709, 130345, 158593, 211565, 321385, 321605, 443173, 488545, 495311, 792965, 1093457, 1222099, 1661053, 1856471, 2215865, 2476555, 5467285, 6110495, 8305265, 8420287, 9282355, 12799879, 20775683, 31560007, 42101435, 63999395, 103878415, 157800035, 217597943, 243197701, 1087989715, 1215988505, 4134360917, 20671804585]

約数ペア:

[(1, 20671804585), (5, 4134360917), (17, 1215988505), (19, 1087989715), (85, 243197701), (95, 217597943), (131, 157800035), (199, 103878415), (323, 63999395), (491, 42101435), (655, 31560007), (995, 20775683), (1615, 12799879), (2227, 9282355), (2455, 8420287), (2489, 8305265), (3383, 6110495), (3781, 5467285), (8347, 2476555), (9329, 2215865), (11135, 1856471), (12445, 1661053), (16915, 1222099), (18905, 1093457), (26069, 792965), (41735, 495311), (42313, 488545), (46645, 443173), (64277, 321605), (64321, 321385), (97709, 211565), (130345, 158593)]