15811840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1123}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 41354208

約数和(自身を除く): 25542368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1123, 1280, 1408, 1760, 2246, 2816, 3520, 4492, 5615, 7040, 8984, 11230, 12353, 14080, 17968, 22460, 24706, 35936, 44920, 49412, 61765, 71872, 89840, 98824, 123530, 143744, 179680, 197648, 247060, 287488, 359360, 395296, 494120, 718720, 790592, 988240, 1437440, 1581184, 1976480, 3162368, 3952960, 7905920, 15811840]

約数ペア:

[(1, 15811840), (2, 7905920), (4, 3952960), (5, 3162368), (8, 1976480), (10, 1581184), (11, 1437440), (16, 988240), (20, 790592), (22, 718720), (32, 494120), (40, 395296), (44, 359360), (55, 287488), (64, 247060), (80, 197648), (88, 179680), (110, 143744), (128, 123530), (160, 98824), (176, 89840), (220, 71872), (256, 61765), (320, 49412), (352, 44920), (440, 35936), (640, 24706), (704, 22460), (880, 17968), (1123, 14080), (1280, 12353), (1408, 11230), (1760, 8984), (2246, 7040), (2816, 5615), (3520, 4492)]