19726256

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 46604160

約数和(自身を除く): 26877904

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 176, 187, 209, 272, 304, 323, 347, 374, 418, 646, 694, 748, 836, 1292, 1388, 1496, 1672, 2584, 2776, 2992, 3344, 3553, 3817, 5168, 5552, 5899, 6593, 7106, 7634, 11798, 13186, 14212, 15268, 23596, 26372, 28424, 30536, 47192, 52744, 56848, 61072, 64889, 72523, 94384, 105488, 112081, 129778, 145046, 224162, 259556, 290092, 448324, 519112, 580184, 896648, 1038224, 1160368, 1232891, 1793296, 2465782, 4931564, 9863128, 19726256]

約数ペア:

[(1, 19726256), (2, 9863128), (4, 4931564), (8, 2465782), (11, 1793296), (16, 1232891), (17, 1160368), (19, 1038224), (22, 896648), (34, 580184), (38, 519112), (44, 448324), (68, 290092), (76, 259556), (88, 224162), (136, 145046), (152, 129778), (176, 112081), (187, 105488), (209, 94384), (272, 72523), (304, 64889), (323, 61072), (347, 56848), (374, 52744), (418, 47192), (646, 30536), (694, 28424), (748, 26372), (836, 23596), (1292, 15268), (1388, 14212), (1496, 13186), (1672, 11798), (2584, 7634), (2776, 7106), (2992, 6593), (3344, 5899), (3553, 5552), (3817, 5168)]