28131495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 27164505

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 59, 95, 105, 133, 177, 239, 285, 295, 399, 413, 665, 717, 885, 1121, 1195, 1239, 1673, 1995, 2065, 3363, 3585, 4541, 5019, 5605, 6195, 7847, 8365, 13623, 14101, 16815, 22705, 23541, 25095, 31787, 39235, 42303, 68115, 70505, 95361, 98707, 117705, 158935, 211515, 267919, 296121, 476805, 493535, 803757, 1339595, 1480605, 1875433, 4018785, 5626299, 9377165, 28131495]

約数ペア:

[(1, 28131495), (3, 9377165), (5, 5626299), (7, 4018785), (15, 1875433), (19, 1480605), (21, 1339595), (35, 803757), (57, 493535), (59, 476805), (95, 296121), (105, 267919), (133, 211515), (177, 158935), (239, 117705), (285, 98707), (295, 95361), (399, 70505), (413, 68115), (665, 42303), (717, 39235), (885, 31787), (1121, 25095), (1195, 23541), (1239, 22705), (1673, 16815), (1995, 14101), (2065, 13623), (3363, 8365), (3585, 7847), (4541, 6195), (5019, 5605)]