81689476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 160634880

約数和(自身を除く): 78945404

約数列:

[1, 2, 4, 11, 22, 44, 71, 79, 142, 158, 284, 316, 331, 662, 781, 869, 1324, 1562, 1738, 3124, 3476, 3641, 5609, 7282, 11218, 14564, 22436, 23501, 26149, 47002, 52298, 61699, 94004, 104596, 123398, 246796, 258511, 287639, 517022, 575278, 1034044, 1150556, 1856579, 3713158, 7426316, 20422369, 40844738, 81689476]

約数ペア:

[(1, 81689476), (2, 40844738), (4, 20422369), (11, 7426316), (22, 3713158), (44, 1856579), (71, 1150556), (79, 1034044), (142, 575278), (158, 517022), (284, 287639), (316, 258511), (331, 246796), (662, 123398), (781, 104596), (869, 94004), (1324, 61699), (1562, 52298), (1738, 47002), (3124, 26149), (3476, 23501), (3641, 22436), (5609, 14564), (7282, 11218)]