20376645

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 35551872

約数和(自身を除く): 15175227

約数列:

[1, 3, 5, 15, 19, 53, 57, 71, 95, 159, 213, 265, 285, 355, 361, 795, 1007, 1065, 1083, 1349, 1805, 3021, 3763, 4047, 5035, 5415, 6745, 11289, 15105, 18815, 19133, 20235, 25631, 56445, 57399, 71497, 76893, 95665, 128155, 214491, 286995, 357485, 384465, 1072455, 1358443, 4075329, 6792215, 20376645]

約数ペア:

[(1, 20376645), (3, 6792215), (5, 4075329), (15, 1358443), (19, 1072455), (53, 384465), (57, 357485), (71, 286995), (95, 214491), (159, 128155), (213, 95665), (265, 76893), (285, 71497), (355, 57399), (361, 56445), (795, 25631), (1007, 20235), (1065, 19133), (1083, 18815), (1349, 15105), (1805, 11289), (3021, 6745), (3763, 5415), (4047, 5035)]