19645340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6869}}^1$

素因数の和:6902

約数の個数: 48

約数和(自身を含む): 48474720

約数和(自身を除く): 28829380

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6869, 13738, 27476, 34345, 68690, 75559, 89297, 137380, 151118, 178594, 302236, 357188, 377795, 446485, 755590, 892970, 982267, 1511180, 1785940, 1964534, 3929068, 4911335, 9822670, 19645340]

約数ペア:

[(1, 19645340), (2, 9822670), (4, 4911335), (5, 3929068), (10, 1964534), (11, 1785940), (13, 1511180), (20, 982267), (22, 892970), (26, 755590), (44, 446485), (52, 377795), (55, 357188), (65, 302236), (110, 178594), (130, 151118), (143, 137380), (220, 89297), (260, 75559), (286, 68690), (572, 34345), (715, 27476), (1430, 13738), (2860, 6869)]