20575520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18371}}^1$

素因数の和:18393

約数の個数: 48

約数和(自身を含む): 55556928

約数和(自身を除く): 34981408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18371, 36742, 73484, 91855, 128597, 146968, 183710, 257194, 293936, 367420, 514388, 587872, 642985, 734840, 1028776, 1285970, 1469680, 2057552, 2571940, 2939360, 4115104, 5143880, 10287760, 20575520]

約数ペア:

[(1, 20575520), (2, 10287760), (4, 5143880), (5, 4115104), (7, 2939360), (8, 2571940), (10, 2057552), (14, 1469680), (16, 1285970), (20, 1028776), (28, 734840), (32, 642985), (35, 587872), (40, 514388), (56, 367420), (70, 293936), (80, 257194), (112, 183710), (140, 146968), (160, 128597), (224, 91855), (280, 73484), (560, 36742), (1120, 18371)]