31506256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1699}}^1$

素因数の和:1787

約数の個数: 40

約数和(自身を含む): 65348000

約数和(自身を除く): 33841744

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1159, 1699, 2318, 3398, 4636, 6796, 9272, 13592, 18544, 27184, 32281, 64562, 103639, 129124, 207278, 258248, 414556, 516496, 829112, 1658224, 1969141, 3938282, 7876564, 15753128, 31506256]

約数ペア:

[(1, 31506256), (2, 15753128), (4, 7876564), (8, 3938282), (16, 1969141), (19, 1658224), (38, 829112), (61, 516496), (76, 414556), (122, 258248), (152, 207278), (244, 129124), (304, 103639), (488, 64562), (976, 32281), (1159, 27184), (1699, 18544), (2318, 13592), (3398, 9272), (4636, 6796)]