202138880

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2099

約数の個数: 72

約数和(自身を含む): 490560000

約数和(自身を除く): 288421120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 790, 1264, 1280, 1580, 1999, 2528, 3160, 3998, 5056, 6320, 7996, 9995, 10112, 12640, 15992, 19990, 20224, 25280, 31984, 39980, 50560, 63968, 79960, 101120, 127936, 157921, 159920, 255872, 315842, 319840, 511744, 631684, 639680, 789605, 1263368, 1279360, 1579210, 2526736, 2558720, 3158420, 5053472, 6316840, 10106944, 12633680, 20213888, 25267360, 40427776, 50534720, 101069440, 202138880]

約数ペア:

[(1, 202138880), (2, 101069440), (4, 50534720), (5, 40427776), (8, 25267360), (10, 20213888), (16, 12633680), (20, 10106944), (32, 6316840), (40, 5053472), (64, 3158420), (79, 2558720), (80, 2526736), (128, 1579210), (158, 1279360), (160, 1263368), (256, 789605), (316, 639680), (320, 631684), (395, 511744), (632, 319840), (640, 315842), (790, 255872), (1264, 159920), (1280, 157921), (1580, 127936), (1999, 101120), (2528, 79960), (3160, 63968), (3998, 50560), (5056, 39980), (6320, 31984), (7996, 25280), (9995, 20224), (10112, 19990), (12640, 15992)]