1821780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 5733000

約数和(自身を除く): 3911220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 349, 435, 522, 580, 698, 870, 1044, 1047, 1305, 1396, 1740, 1745, 2094, 2610, 3141, 3490, 4188, 5220, 5235, 6282, 6980, 10121, 10470, 12564, 15705, 20242, 20940, 30363, 31410, 40484, 50605, 60726, 62820, 91089, 101210, 121452, 151815, 182178, 202420, 303630, 364356, 455445, 607260, 910890, 1821780]

約数ペア:

[(1, 1821780), (2, 910890), (3, 607260), (4, 455445), (5, 364356), (6, 303630), (9, 202420), (10, 182178), (12, 151815), (15, 121452), (18, 101210), (20, 91089), (29, 62820), (30, 60726), (36, 50605), (45, 40484), (58, 31410), (60, 30363), (87, 20940), (90, 20242), (116, 15705), (145, 12564), (174, 10470), (180, 10121), (261, 6980), (290, 6282), (348, 5235), (349, 5220), (435, 4188), (522, 3490), (580, 3141), (698, 2610), (870, 2094), (1044, 1745), (1047, 1740), (1305, 1396)]