204887680

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:522

約数の個数: 128

約数和(自身を含む): 528768000

約数和(自身を除く): 323880320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 155, 160, 184, 230, 248, 310, 320, 368, 449, 460, 496, 620, 640, 713, 736, 898, 920, 992, 1240, 1426, 1472, 1796, 1840, 1984, 2245, 2480, 2852, 2944, 3565, 3592, 3680, 3968, 4490, 4960, 5704, 7130, 7184, 7360, 8980, 9920, 10327, 11408, 13919, 14260, 14368, 14720, 17960, 19840, 20654, 22816, 27838, 28520, 28736, 35920, 41308, 45632, 51635, 55676, 57040, 57472, 69595, 71840, 82616, 91264, 103270, 111352, 114080, 139190, 143680, 165232, 206540, 222704, 228160, 278380, 287360, 320137, 330464, 413080, 445408, 456320, 556760, 640274, 660928, 826160, 890816, 1113520, 1280548, 1321856, 1600685, 1652320, 1781632, 2227040, 2561096, 3201370, 3304640, 4454080, 5122192, 6402740, 6609280, 8908160, 10244384, 12805480, 20488768, 25610960, 40977536, 51221920, 102443840, 204887680]

約数ペア:

[(1, 204887680), (2, 102443840), (4, 51221920), (5, 40977536), (8, 25610960), (10, 20488768), (16, 12805480), (20, 10244384), (23, 8908160), (31, 6609280), (32, 6402740), (40, 5122192), (46, 4454080), (62, 3304640), (64, 3201370), (80, 2561096), (92, 2227040), (115, 1781632), (124, 1652320), (128, 1600685), (155, 1321856), (160, 1280548), (184, 1113520), (230, 890816), (248, 826160), (310, 660928), (320, 640274), (368, 556760), (449, 456320), (460, 445408), (496, 413080), (620, 330464), (640, 320137), (713, 287360), (736, 278380), (898, 228160), (920, 222704), (992, 206540), (1240, 165232), (1426, 143680), (1472, 139190), (1796, 114080), (1840, 111352), (1984, 103270), (2245, 91264), (2480, 82616), (2852, 71840), (2944, 69595), (3565, 57472), (3592, 57040), (3680, 55676), (3968, 51635), (4490, 45632), (4960, 41308), (5704, 35920), (7130, 28736), (7184, 28520), (7360, 27838), (8980, 22816), (9920, 20654), (10327, 19840), (11408, 17960), (13919, 14720), (14260, 14368)]