20148726020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1\times {\mathrm{17939}}^1$

素因数の和:18668

約数の個数: 48

約数和(自身を含む): 42857942400

約数和(自身を除く): 22709216380

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 631, 890, 1262, 1780, 2524, 3155, 6310, 12620, 17939, 35878, 56159, 71756, 89695, 112318, 179390, 224636, 280795, 358780, 561590, 1123180, 1596571, 3193142, 6386284, 7982855, 11319509, 15965710, 22639018, 31931420, 45278036, 56597545, 113195090, 226390180, 1007436301, 2014872602, 4029745204, 5037181505, 10074363010, 20148726020]

約数ペア:

[(1, 20148726020), (2, 10074363010), (4, 5037181505), (5, 4029745204), (10, 2014872602), (20, 1007436301), (89, 226390180), (178, 113195090), (356, 56597545), (445, 45278036), (631, 31931420), (890, 22639018), (1262, 15965710), (1780, 11319509), (2524, 7982855), (3155, 6386284), (6310, 3193142), (12620, 1596571), (17939, 1123180), (35878, 561590), (56159, 358780), (71756, 280795), (89695, 224636), (112318, 179390)]