140304892

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20287}}^1$

素因数の和:20330

約数の個数: 48

約数和(自身を含む): 318115840

約数和(自身を除く): 177810948

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 3458, 6916, 20287, 40574, 81148, 142009, 263731, 284018, 385453, 527462, 568036, 770906, 1054924, 1541812, 1846117, 2698171, 3692234, 5010889, 5396342, 7384468, 10021778, 10792684, 20043556, 35076223, 70152446, 140304892]

約数ペア:

[(1, 140304892), (2, 70152446), (4, 35076223), (7, 20043556), (13, 10792684), (14, 10021778), (19, 7384468), (26, 5396342), (28, 5010889), (38, 3692234), (52, 2698171), (76, 1846117), (91, 1541812), (133, 1054924), (182, 770906), (247, 568036), (266, 527462), (364, 385453), (494, 284018), (532, 263731), (988, 142009), (1729, 81148), (3458, 40574), (6916, 20287)]