156939620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1607}}^1$

素因数の和:1892

約数の個数: 48

約数和(自身を含む): 348485760

約数和(自身を除く): 191546140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 257, 380, 514, 1028, 1285, 1607, 2570, 3214, 4883, 5140, 6428, 8035, 9766, 16070, 19532, 24415, 30533, 32140, 48830, 61066, 97660, 122132, 152665, 305330, 412999, 610660, 825998, 1651996, 2064995, 4129990, 7846981, 8259980, 15693962, 31387924, 39234905, 78469810, 156939620]

約数ペア:

[(1, 156939620), (2, 78469810), (4, 39234905), (5, 31387924), (10, 15693962), (19, 8259980), (20, 7846981), (38, 4129990), (76, 2064995), (95, 1651996), (190, 825998), (257, 610660), (380, 412999), (514, 305330), (1028, 152665), (1285, 122132), (1607, 97660), (2570, 61066), (3214, 48830), (4883, 32140), (5140, 30533), (6428, 24415), (8035, 19532), (9766, 16070)]