257695920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{71}}^3$

素因数の和:232

約数の個数: 120

約数和(自身を含む): 877792032

約数和(自身を除く): 620096112

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 71, 72, 80, 90, 120, 142, 144, 180, 213, 240, 284, 355, 360, 426, 568, 639, 710, 720, 852, 1065, 1136, 1278, 1420, 1704, 2130, 2556, 2840, 3195, 3408, 4260, 5041, 5112, 5680, 6390, 8520, 10082, 10224, 12780, 15123, 17040, 20164, 25205, 25560, 30246, 40328, 45369, 50410, 51120, 60492, 75615, 80656, 90738, 100820, 120984, 151230, 181476, 201640, 226845, 241968, 302460, 357911, 362952, 403280, 453690, 604920, 715822, 725904, 907380, 1073733, 1209840, 1431644, 1789555, 1814760, 2147466, 2863288, 3221199, 3579110, 3629520, 4294932, 5368665, 5726576, 6442398, 7158220, 8589864, 10737330, 12884796, 14316440, 16105995, 17179728, 21474660, 25769592, 28632880, 32211990, 42949320, 51539184, 64423980, 85898640, 128847960, 257695920]

約数ペア:

[(1, 257695920), (2, 128847960), (3, 85898640), (4, 64423980), (5, 51539184), (6, 42949320), (8, 32211990), (9, 28632880), (10, 25769592), (12, 21474660), (15, 17179728), (16, 16105995), (18, 14316440), (20, 12884796), (24, 10737330), (30, 8589864), (36, 7158220), (40, 6442398), (45, 5726576), (48, 5368665), (60, 4294932), (71, 3629520), (72, 3579110), (80, 3221199), (90, 2863288), (120, 2147466), (142, 1814760), (144, 1789555), (180, 1431644), (213, 1209840), (240, 1073733), (284, 907380), (355, 725904), (360, 715822), (426, 604920), (568, 453690), (639, 403280), (710, 362952), (720, 357911), (852, 302460), (1065, 241968), (1136, 226845), (1278, 201640), (1420, 181476), (1704, 151230), (2130, 120984), (2556, 100820), (2840, 90738), (3195, 80656), (3408, 75615), (4260, 60492), (5041, 51120), (5112, 50410), (5680, 45369), (6390, 40328), (8520, 30246), (10082, 25560), (10224, 25205), (12780, 20164), (15123, 17040)]