18158480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^3$

素因数の和:196

約数の個数: 40

約数和(自身を含む): 42922104

約数和(自身を除く): 24763624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3721, 4880, 7442, 14884, 18605, 29768, 37210, 59536, 74420, 148840, 226981, 297680, 453962, 907924, 1134905, 1815848, 2269810, 3631696, 4539620, 9079240, 18158480]

約数ペア:

[(1, 18158480), (2, 9079240), (4, 4539620), (5, 3631696), (8, 2269810), (10, 1815848), (16, 1134905), (20, 907924), (40, 453962), (61, 297680), (80, 226981), (122, 148840), (244, 74420), (305, 59536), (488, 37210), (610, 29768), (976, 18605), (1220, 14884), (2440, 7442), (3721, 4880)]