251142720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1997}}^1$

素因数の和:2148

約数の個数: 112

約数和(自身を含む): 803867328

約数和(自身を除く): 552724608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 131, 160, 192, 240, 262, 320, 393, 480, 524, 655, 786, 960, 1048, 1310, 1572, 1965, 1997, 2096, 2620, 3144, 3930, 3994, 4192, 5240, 5991, 6288, 7860, 7988, 8384, 9985, 10480, 11982, 12576, 15720, 15976, 19970, 20960, 23964, 25152, 29955, 31440, 31952, 39940, 41920, 47928, 59910, 62880, 63904, 79880, 95856, 119820, 125760, 127808, 159760, 191712, 239640, 261607, 319520, 383424, 479280, 523214, 639040, 784821, 958560, 1046428, 1308035, 1569642, 1917120, 2092856, 2616070, 3139284, 3924105, 4185712, 5232140, 6278568, 7848210, 8371424, 10464280, 12557136, 15696420, 16742848, 20928560, 25114272, 31392840, 41857120, 50228544, 62785680, 83714240, 125571360, 251142720]

約数ペア:

[(1, 251142720), (2, 125571360), (3, 83714240), (4, 62785680), (5, 50228544), (6, 41857120), (8, 31392840), (10, 25114272), (12, 20928560), (15, 16742848), (16, 15696420), (20, 12557136), (24, 10464280), (30, 8371424), (32, 7848210), (40, 6278568), (48, 5232140), (60, 4185712), (64, 3924105), (80, 3139284), (96, 2616070), (120, 2092856), (131, 1917120), (160, 1569642), (192, 1308035), (240, 1046428), (262, 958560), (320, 784821), (393, 639040), (480, 523214), (524, 479280), (655, 383424), (786, 319520), (960, 261607), (1048, 239640), (1310, 191712), (1572, 159760), (1965, 127808), (1997, 125760), (2096, 119820), (2620, 95856), (3144, 79880), (3930, 63904), (3994, 62880), (4192, 59910), (5240, 47928), (5991, 41920), (6288, 39940), (7860, 31952), (7988, 31440), (8384, 29955), (9985, 25152), (10480, 23964), (11982, 20960), (12576, 19970), (15720, 15976)]