19993890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5011}}^1$

素因数の和:5047

約数の個数: 64

約数和(自身を含む): 57738240

約数和(自身を除く): 37744350

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 5011, 10022, 15033, 25055, 30066, 35077, 50110, 70154, 75165, 95209, 105231, 150330, 175385, 190418, 210462, 285627, 350770, 476045, 526155, 571254, 666463, 952090, 1052310, 1332926, 1428135, 1999389, 2856270, 3332315, 3998778, 6664630, 9996945, 19993890]

約数ペア:

[(1, 19993890), (2, 9996945), (3, 6664630), (5, 3998778), (6, 3332315), (7, 2856270), (10, 1999389), (14, 1428135), (15, 1332926), (19, 1052310), (21, 952090), (30, 666463), (35, 571254), (38, 526155), (42, 476045), (57, 350770), (70, 285627), (95, 210462), (105, 190418), (114, 175385), (133, 150330), (190, 105231), (210, 95209), (266, 75165), (285, 70154), (399, 50110), (570, 35077), (665, 30066), (798, 25055), (1330, 15033), (1995, 10022), (3990, 5011)]