19732720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 52996608

約数和(自身を除く): 33263888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 167, 211, 280, 334, 422, 560, 668, 835, 844, 1055, 1169, 1336, 1477, 1670, 1688, 2110, 2338, 2672, 2954, 3340, 3376, 4220, 4676, 5845, 5908, 6680, 7385, 8440, 9352, 11690, 11816, 13360, 14770, 16880, 18704, 23380, 23632, 29540, 35237, 46760, 59080, 70474, 93520, 118160, 140948, 176185, 246659, 281896, 352370, 493318, 563792, 704740, 986636, 1233295, 1409480, 1973272, 2466590, 2818960, 3946544, 4933180, 9866360, 19732720]

約数ペア:

[(1, 19732720), (2, 9866360), (4, 4933180), (5, 3946544), (7, 2818960), (8, 2466590), (10, 1973272), (14, 1409480), (16, 1233295), (20, 986636), (28, 704740), (35, 563792), (40, 493318), (56, 352370), (70, 281896), (80, 246659), (112, 176185), (140, 140948), (167, 118160), (211, 93520), (280, 70474), (334, 59080), (422, 46760), (560, 35237), (668, 29540), (835, 23632), (844, 23380), (1055, 18704), (1169, 16880), (1336, 14770), (1477, 13360), (1670, 11816), (1688, 11690), (2110, 9352), (2338, 8440), (2672, 7385), (2954, 6680), (3340, 5908), (3376, 5845), (4220, 4676)]