164801988

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1009}}^1$

素因数の和:1381

約数の個数: 72

約数和(自身を含む): 450359000

約数和(自身を除く): 285557012

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 349, 468, 698, 1009, 1047, 1396, 2018, 2094, 3027, 3141, 4036, 4188, 4537, 6054, 6282, 9074, 9081, 12108, 12564, 13117, 13611, 18148, 18162, 26234, 27222, 36324, 39351, 40833, 52468, 54444, 78702, 81666, 118053, 157404, 163332, 236106, 352141, 472212, 704282, 1056423, 1408564, 2112846, 3169269, 4225692, 4577833, 6338538, 9155666, 12677076, 13733499, 18311332, 27466998, 41200497, 54933996, 82400994, 164801988]

約数ペア:

[(1, 164801988), (2, 82400994), (3, 54933996), (4, 41200497), (6, 27466998), (9, 18311332), (12, 13733499), (13, 12677076), (18, 9155666), (26, 6338538), (36, 4577833), (39, 4225692), (52, 3169269), (78, 2112846), (117, 1408564), (156, 1056423), (234, 704282), (349, 472212), (468, 352141), (698, 236106), (1009, 163332), (1047, 157404), (1396, 118053), (2018, 81666), (2094, 78702), (3027, 54444), (3141, 52468), (4036, 40833), (4188, 39351), (4537, 36324), (6054, 27222), (6282, 26234), (9074, 18162), (9081, 18148), (12108, 13611), (12564, 13117)]