18958112

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 20958688

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 116, 124, 232, 248, 464, 496, 659, 899, 928, 992, 1318, 1798, 2636, 3596, 5272, 7192, 10544, 14384, 19111, 20429, 21088, 28768, 38222, 40858, 76444, 81716, 152888, 163432, 305776, 326864, 592441, 611552, 653728, 1184882, 2369764, 4739528, 9479056, 18958112]

約数ペア:

[(1, 18958112), (2, 9479056), (4, 4739528), (8, 2369764), (16, 1184882), (29, 653728), (31, 611552), (32, 592441), (58, 326864), (62, 305776), (116, 163432), (124, 152888), (232, 81716), (248, 76444), (464, 40858), (496, 38222), (659, 28768), (899, 21088), (928, 20429), (992, 19111), (1318, 14384), (1798, 10544), (2636, 7192), (3596, 5272)]