628157440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1553}}^1$

素因数の和:1657

約数の個数: 88

約数和(自身を含む): 1526898240

約数和(自身を除く): 898740800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 512, 632, 640, 790, 1024, 1264, 1280, 1553, 1580, 2528, 2560, 3106, 3160, 5056, 5120, 6212, 6320, 7765, 10112, 12424, 12640, 15530, 20224, 24848, 25280, 31060, 40448, 49696, 50560, 62120, 80896, 99392, 101120, 122687, 124240, 198784, 202240, 245374, 248480, 397568, 404480, 490748, 496960, 613435, 795136, 981496, 993920, 1226870, 1590272, 1962992, 1987840, 2453740, 3925984, 3975680, 4907480, 7851968, 7951360, 9814960, 15703936, 19629920, 31407872, 39259840, 62815744, 78519680, 125631488, 157039360, 314078720, 628157440]

約数ペア:

[(1, 628157440), (2, 314078720), (4, 157039360), (5, 125631488), (8, 78519680), (10, 62815744), (16, 39259840), (20, 31407872), (32, 19629920), (40, 15703936), (64, 9814960), (79, 7951360), (80, 7851968), (128, 4907480), (158, 3975680), (160, 3925984), (256, 2453740), (316, 1987840), (320, 1962992), (395, 1590272), (512, 1226870), (632, 993920), (640, 981496), (790, 795136), (1024, 613435), (1264, 496960), (1280, 490748), (1553, 404480), (1580, 397568), (2528, 248480), (2560, 245374), (3106, 202240), (3160, 198784), (5056, 124240), (5120, 122687), (6212, 101120), (6320, 99392), (7765, 80896), (10112, 62120), (12424, 50560), (12640, 49696), (15530, 40448), (20224, 31060), (24848, 25280)]