405300376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 838252800

約数和(自身を除く): 432952424

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 131, 142, 262, 284, 419, 524, 568, 838, 923, 1048, 1676, 1703, 1846, 3352, 3406, 3692, 5447, 6812, 7384, 9301, 10894, 13624, 18602, 21788, 29749, 37204, 43576, 54889, 59498, 74408, 109778, 118996, 120913, 219556, 237992, 241826, 386737, 439112, 483652, 713557, 773474, 967304, 1427114, 1546948, 2854228, 3093896, 3897119, 5708456, 7794238, 15588476, 31176952, 50662547, 101325094, 202650188, 405300376]

約数ペア:

[(1, 405300376), (2, 202650188), (4, 101325094), (8, 50662547), (13, 31176952), (26, 15588476), (52, 7794238), (71, 5708456), (104, 3897119), (131, 3093896), (142, 2854228), (262, 1546948), (284, 1427114), (419, 967304), (524, 773474), (568, 713557), (838, 483652), (923, 439112), (1048, 386737), (1676, 241826), (1703, 237992), (1846, 219556), (3352, 120913), (3406, 118996), (3692, 109778), (5447, 74408), (6812, 59498), (7384, 54889), (9301, 43576), (10894, 37204), (13624, 29749), (18602, 21788)]