15668919020

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{991}}^1\times {\mathrm{4013}}^1$

素因数の和:5210

約数の個数: 48

約数和(自身を含む): 33113380608

約数和(自身を除く): 17444461588

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 991, 1970, 1982, 3940, 3964, 4013, 4955, 8026, 9910, 16052, 19820, 20065, 40130, 80260, 195227, 390454, 780908, 790561, 976135, 1581122, 1952270, 3162244, 3904540, 3952805, 3976883, 7905610, 7953766, 15811220, 15907532, 19884415, 39768830, 79537660, 783445951, 1566891902, 3133783804, 3917229755, 7834459510, 15668919020]

約数ペア:

[(1, 15668919020), (2, 7834459510), (4, 3917229755), (5, 3133783804), (10, 1566891902), (20, 783445951), (197, 79537660), (394, 39768830), (788, 19884415), (985, 15907532), (991, 15811220), (1970, 7953766), (1982, 7905610), (3940, 3976883), (3964, 3952805), (4013, 3904540), (4955, 3162244), (8026, 1952270), (9910, 1581122), (16052, 976135), (19820, 790561), (20065, 780908), (40130, 390454), (80260, 195227)]