20316816

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{10853}}^1$

素因数の和:10880

約数の個数: 60

約数和(自身を含む): 61238268

約数和(自身を除く): 40921452

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 10853, 21706, 32559, 43412, 65118, 86824, 97677, 130236, 141089, 173648, 195354, 260472, 282178, 390708, 423267, 520944, 564356, 781416, 846534, 1128712, 1269801, 1562832, 1693068, 2257424, 2539602, 3386136, 5079204, 6772272, 10158408, 20316816]

約数ペア:

[(1, 20316816), (2, 10158408), (3, 6772272), (4, 5079204), (6, 3386136), (8, 2539602), (9, 2257424), (12, 1693068), (13, 1562832), (16, 1269801), (18, 1128712), (24, 846534), (26, 781416), (36, 564356), (39, 520944), (48, 423267), (52, 390708), (72, 282178), (78, 260472), (104, 195354), (117, 173648), (144, 141089), (156, 130236), (208, 97677), (234, 86824), (312, 65118), (468, 43412), (624, 32559), (936, 21706), (1872, 10853)]