158237440

素因数分解:

$2^8\times 5^1\times {\mathrm{181}}^1\times {\mathrm{683}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 381680208

約数和(自身を除く): 223442768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 320, 362, 640, 683, 724, 905, 1280, 1366, 1448, 1810, 2732, 2896, 3415, 3620, 5464, 5792, 6830, 7240, 10928, 11584, 13660, 14480, 21856, 23168, 27320, 28960, 43712, 46336, 54640, 57920, 87424, 109280, 115840, 123623, 174848, 218560, 231680, 247246, 437120, 494492, 618115, 874240, 988984, 1236230, 1977968, 2472460, 3955936, 4944920, 7911872, 9889840, 15823744, 19779680, 31647488, 39559360, 79118720, 158237440]

約数ペア:

[(1, 158237440), (2, 79118720), (4, 39559360), (5, 31647488), (8, 19779680), (10, 15823744), (16, 9889840), (20, 7911872), (32, 4944920), (40, 3955936), (64, 2472460), (80, 1977968), (128, 1236230), (160, 988984), (181, 874240), (256, 618115), (320, 494492), (362, 437120), (640, 247246), (683, 231680), (724, 218560), (905, 174848), (1280, 123623), (1366, 115840), (1448, 109280), (1810, 87424), (2732, 57920), (2896, 54640), (3415, 46336), (3620, 43712), (5464, 28960), (5792, 27320), (6830, 23168), (7240, 21856), (10928, 14480), (11584, 13660)]