19744040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 47476800

約数和(自身を除く): 27732760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 152, 166, 190, 313, 332, 380, 415, 626, 664, 760, 830, 1252, 1565, 1577, 1660, 2504, 3130, 3154, 3320, 5947, 6260, 6308, 7885, 11894, 12520, 12616, 15770, 23788, 25979, 29735, 31540, 47576, 51958, 59470, 63080, 103916, 118940, 129895, 207832, 237880, 259790, 493601, 519580, 987202, 1039160, 1974404, 2468005, 3948808, 4936010, 9872020, 19744040]

約数ペア:

[(1, 19744040), (2, 9872020), (4, 4936010), (5, 3948808), (8, 2468005), (10, 1974404), (19, 1039160), (20, 987202), (38, 519580), (40, 493601), (76, 259790), (83, 237880), (95, 207832), (152, 129895), (166, 118940), (190, 103916), (313, 63080), (332, 59470), (380, 51958), (415, 47576), (626, 31540), (664, 29735), (760, 25979), (830, 23788), (1252, 15770), (1565, 12616), (1577, 12520), (1660, 11894), (2504, 7885), (3130, 6308), (3154, 6260), (3320, 5947)]