16557640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{311}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 41109120

約数和(自身を除く): 24551480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 311, 440, 484, 605, 622, 968, 1210, 1244, 1331, 1555, 2420, 2488, 2662, 3110, 3421, 4840, 5324, 6220, 6655, 6842, 10648, 12440, 13310, 13684, 17105, 26620, 27368, 34210, 37631, 53240, 68420, 75262, 136840, 150524, 188155, 301048, 376310, 413941, 752620, 827882, 1505240, 1655764, 2069705, 3311528, 4139410, 8278820, 16557640]

約数ペア:

[(1, 16557640), (2, 8278820), (4, 4139410), (5, 3311528), (8, 2069705), (10, 1655764), (11, 1505240), (20, 827882), (22, 752620), (40, 413941), (44, 376310), (55, 301048), (88, 188155), (110, 150524), (121, 136840), (220, 75262), (242, 68420), (311, 53240), (440, 37631), (484, 34210), (605, 27368), (622, 26620), (968, 17105), (1210, 13684), (1244, 13310), (1331, 12440), (1555, 10648), (2420, 6842), (2488, 6655), (2662, 6220), (3110, 5324), (3421, 4840)]