251141120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:477

約数の個数: 88

約数和(自身を含む): 608008128

約数和(自身を除く): 356867008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 271, 320, 362, 512, 542, 640, 724, 905, 1024, 1084, 1280, 1355, 1448, 1810, 2168, 2560, 2710, 2896, 3620, 4336, 5120, 5420, 5792, 7240, 8672, 10840, 11584, 14480, 17344, 21680, 23168, 28960, 34688, 43360, 46336, 49051, 57920, 69376, 86720, 92672, 98102, 115840, 138752, 173440, 185344, 196204, 231680, 245255, 277504, 346880, 392408, 463360, 490510, 693760, 784816, 926720, 981020, 1387520, 1569632, 1962040, 3139264, 3924080, 6278528, 7848160, 12557056, 15696320, 25114112, 31392640, 50228224, 62785280, 125570560, 251141120]

約数ペア:

[(1, 251141120), (2, 125570560), (4, 62785280), (5, 50228224), (8, 31392640), (10, 25114112), (16, 15696320), (20, 12557056), (32, 7848160), (40, 6278528), (64, 3924080), (80, 3139264), (128, 1962040), (160, 1569632), (181, 1387520), (256, 981020), (271, 926720), (320, 784816), (362, 693760), (512, 490510), (542, 463360), (640, 392408), (724, 346880), (905, 277504), (1024, 245255), (1084, 231680), (1280, 196204), (1355, 185344), (1448, 173440), (1810, 138752), (2168, 115840), (2560, 98102), (2710, 92672), (2896, 86720), (3620, 69376), (4336, 57920), (5120, 49051), (5420, 46336), (5792, 43360), (7240, 34688), (8672, 28960), (10840, 23168), (11584, 21680), (14480, 17344)]