28145805

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{727}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 19028595

約数列:

[1, 3, 5, 15, 29, 87, 89, 145, 267, 435, 445, 727, 1335, 2181, 2581, 3635, 7743, 10905, 12905, 21083, 38715, 63249, 64703, 105415, 194109, 316245, 323515, 970545, 1876387, 5629161, 9381935, 28145805]

約数ペア:

[(1, 28145805), (3, 9381935), (5, 5629161), (15, 1876387), (29, 970545), (87, 323515), (89, 316245), (145, 194109), (267, 105415), (435, 64703), (445, 63249), (727, 38715), (1335, 21083), (2181, 12905), (2581, 10905), (3635, 7743)]