1285403745

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 2220777216

約数和(自身を除く): 935373471

約数列:

[1, 3, 5, 15, 17, 51, 85, 97, 157, 255, 291, 331, 471, 485, 785, 993, 1455, 1649, 1655, 2355, 2669, 4947, 4965, 5627, 8007, 8245, 13345, 15229, 16881, 24735, 28135, 32107, 40035, 45687, 51967, 76145, 84405, 96321, 155901, 160535, 228435, 258893, 259835, 481605, 545819, 776679, 779505, 883439, 1294465, 1637457, 2650317, 2729095, 3883395, 4417195, 5040799, 8187285, 13251585, 15122397, 25203995, 75611985, 85693583, 257080749, 428467915, 1285403745]

約数ペア:

[(1, 1285403745), (3, 428467915), (5, 257080749), (15, 85693583), (17, 75611985), (51, 25203995), (85, 15122397), (97, 13251585), (157, 8187285), (255, 5040799), (291, 4417195), (331, 3883395), (471, 2729095), (485, 2650317), (785, 1637457), (993, 1294465), (1455, 883439), (1649, 779505), (1655, 776679), (2355, 545819), (2669, 481605), (4947, 259835), (4965, 258893), (5627, 228435), (8007, 160535), (8245, 155901), (13345, 96321), (15229, 84405), (16881, 76145), (24735, 51967), (28135, 45687), (32107, 40035)]