81648632

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 167401080

約数和(自身を除く): 85752448

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 169, 262, 338, 461, 524, 676, 922, 1048, 1352, 1703, 1844, 3406, 3688, 5993, 6812, 11986, 13624, 22139, 23972, 44278, 47944, 60391, 77909, 88556, 120782, 155818, 177112, 241564, 311636, 483128, 623272, 785083, 1570166, 3140332, 6280664, 10206079, 20412158, 40824316, 81648632]

約数ペア:

[(1, 81648632), (2, 40824316), (4, 20412158), (8, 10206079), (13, 6280664), (26, 3140332), (52, 1570166), (104, 785083), (131, 623272), (169, 483128), (262, 311636), (338, 241564), (461, 177112), (524, 155818), (676, 120782), (922, 88556), (1048, 77909), (1352, 60391), (1703, 47944), (1844, 44278), (3406, 23972), (3688, 22139), (5993, 13624), (6812, 11986)]