19669180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{271}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 43868160

約数和(自身を除く): 24198980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 271, 380, 382, 542, 764, 955, 1084, 1355, 1910, 2710, 3629, 3820, 5149, 5420, 7258, 10298, 14516, 18145, 20596, 25745, 36290, 51490, 51761, 72580, 102980, 103522, 207044, 258805, 517610, 983459, 1035220, 1966918, 3933836, 4917295, 9834590, 19669180]

約数ペア:

[(1, 19669180), (2, 9834590), (4, 4917295), (5, 3933836), (10, 1966918), (19, 1035220), (20, 983459), (38, 517610), (76, 258805), (95, 207044), (190, 103522), (191, 102980), (271, 72580), (380, 51761), (382, 51490), (542, 36290), (764, 25745), (955, 20596), (1084, 18145), (1355, 14516), (1910, 10298), (2710, 7258), (3629, 5420), (3820, 5149)]