20076880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6121}}^1$

素因数の和:6175

約数の個数: 40

約数和(自身を含む): 47825064

約数和(自身を除く): 27748184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6121, 12242, 24484, 30605, 48968, 61210, 97936, 122420, 244840, 250961, 489680, 501922, 1003844, 1254805, 2007688, 2509610, 4015376, 5019220, 10038440, 20076880]

約数ペア:

[(1, 20076880), (2, 10038440), (4, 5019220), (5, 4015376), (8, 2509610), (10, 2007688), (16, 1254805), (20, 1003844), (40, 501922), (41, 489680), (80, 250961), (82, 244840), (164, 122420), (205, 97936), (328, 61210), (410, 48968), (656, 30605), (820, 24484), (1640, 12242), (3280, 6121)]